// TinyColor v1.0.0 // https://github.com/bgrins/TinyColor // Brian Grinstead, MIT License (function() { var trimLeft = /^[\s,#]+/, trimRight = /\s+$/, tinyCounter = 0, math = Math, mathRound = math.round, mathMin = math.min, mathMax = math.max, mathRandom = math.random; var tinycolor = function tinycolor (color, opts) { color = (color) ? color : ''; opts = opts || { }; // If input is already a tinycolor, return itself if (color instanceof tinycolor) { return color; } // If we are called as a function, call using new instead if (!(this instanceof tinycolor)) { return new tinycolor(color, opts); } var rgb = inputToRGB(color); this._r = rgb.r, this._g = rgb.g, this._b = rgb.b, this._a = rgb.a, this._roundA = mathRound(100*this._a) / 100, this._format = opts.format || rgb.format; this._gradientType = opts.gradientType; // Don't let the range of [0,255] come back in [0,1]. // Potentially lose a little bit of precision here, but will fix issues where // .5 gets interpreted as half of the total, instead of half of 1 // If it was supposed to be 128, this was already taken care of by `inputToRgb` if (this._r < 1) { this._r = mathRound(this._r); } if (this._g < 1) { this._g = mathRound(this._g); } if (this._b < 1) { this._b = mathRound(this._b); } this._ok = rgb.ok; this._tc_id = tinyCounter++; }; tinycolor.prototype = { isDark: function() { return this.getBrightness() < 128; }, isLight: function() { return !this.isDark(); }, isValid: function() { return this._ok; }, getFormat: function() { return this._format; }, getAlpha: function() { return this._a; }, getBrightness: function() { var rgb = this.toRgb(); return (rgb.r * 299 + rgb.g * 587 + rgb.b * 114) / 1000; }, setAlpha: function(value) { this._a = boundAlpha(value); this._roundA = mathRound(100*this._a) / 100; return this; }, toHsv: function() { var hsv = rgbToHsv(this._r, this._g, this._b); return { h: hsv.h * 360, s: hsv.s, v: hsv.v, a: this._a }; }, toHsvString: function() { var hsv = rgbToHsv(this._r, this._g, this._b); var h = mathRound(hsv.h * 360), s = mathRound(hsv.s * 100), v = mathRound(hsv.v * 100); return (this._a == 1) ? "hsv(" + h + ", " + s + "%, " + v + "%)" : "hsva(" + h + ", " + s + "%, " + v + "%, "+ this._roundA + ")"; }, toHsl: function() { var hsl = rgbToHsl(this._r, this._g, this._b); return { h: hsl.h * 360, s: hsl.s, l: hsl.l, a: this._a }; }, toHslString: function() { var hsl = rgbToHsl(this._r, this._g, this._b); var h = mathRound(hsl.h * 360), s = mathRound(hsl.s * 100), l = mathRound(hsl.l * 100); return (this._a == 1) ? "hsl(" + h + ", " + s + "%, " + l + "%)" : "hsla(" + h + ", " + s + "%, " + l + "%, "+ this._roundA + ")"; }, toHex: function(allow3Char) { return rgbToHex(this._r, this._g, this._b, allow3Char); }, toHexString: function(allow3Char) { return '#' + this.toHex(allow3Char); }, toHex8: function() { return rgbaToHex(this._r, this._g, this._b, this._a); }, toHex8String: function() { return '#' + this.toHex8(); }, toRgb: function() { return { r: mathRound(this._r), g: mathRound(this._g), b: mathRound(this._b), a: this._a }; }, toRgbString: function() { return (this._a == 1) ? "rgb(" + mathRound(this._r) + ", " + mathRound(this._g) + ", " + mathRound(this._b) + ")" : "rgba(" + mathRound(this._r) + ", " + mathRound(this._g) + ", " + mathRound(this._b) + ", " + this._roundA + ")"; }, toPercentageRgb: function() { return { r: mathRound(bound01(this._r, 255) * 100) + "%", g: mathRound(bound01(this._g, 255) * 100) + "%", b: mathRound(bound01(this._b, 255) * 100) + "%", a: this._a }; }, toPercentageRgbString: function() { return (this._a == 1) ? "rgb(" + mathRound(bound01(this._r, 255) * 100) + "%, " + mathRound(bound01(this._g, 255) * 100) + "%, " + mathRound(bound01(this._b, 255) * 100) + "%)" : "rgba(" + mathRound(bound01(this._r, 255) * 100) + "%, " + mathRound(bound01(this._g, 255) * 100) + "%, " + mathRound(bound01(this._b, 255) * 100) + "%, " + this._roundA + ")"; }, toName: function() { if (this._a === 0) { return "transparent"; } if (this._a < 1) { return false; } return hexNames[rgbToHex(this._r, this._g, this._b, true)] || false; }, toFilter: function(secondColor) { var hex8String = '#' + rgbaToHex(this._r, this._g, this._b, this._a); var secondHex8String = hex8String; var gradientType = this._gradientType ? "GradientType = 1, " : ""; if (secondColor) { var s = tinycolor(secondColor); secondHex8String = s.toHex8String(); } return "progid:DXImageTransform.Microsoft.gradient("+gradientType+"startColorstr="+hex8String+",endColorstr="+secondHex8String+")"; }, toString: function(format) { var formatSet = !!format; format = format || this._format; var formattedString = false; var hasAlpha = this._a < 1 && this._a >= 0; var needsAlphaFormat = !formatSet && hasAlpha && (format === "hex" || format === "hex6" || format === "hex3" || format === "name"); if (needsAlphaFormat) { // Special case for "transparent", all other non-alpha formats // will return rgba when there is transparency. if (format === "name" && this._a === 0) { return this.toName(); } return this.toRgbString(); } if (format === "rgb") { formattedString = this.toRgbString(); } if (format === "prgb") { formattedString = this.toPercentageRgbString(); } if (format === "hex" || format === "hex6") { formattedString = this.toHexString(); } if (format === "hex3") { formattedString = this.toHexString(true); } if (format === "hex8") { formattedString = this.toHex8String(); } if (format === "name") { formattedString = this.toName(); } if (format === "hsl") { formattedString = this.toHslString(); } if (format === "hsv") { formattedString = this.toHsvString(); } return formattedString || this.toHexString(); }, _applyModification: function(fn, args) { var color = fn.apply(null, [this].concat([].slice.call(args))); this._r = color._r; this._g = color._g; this._b = color._b; this.setAlpha(color._a); return this; }, lighten: function() { return this._applyModification(lighten, arguments); }, brighten: function() { return this._applyModification(brighten, arguments); }, darken: function() { return this._applyModification(darken, arguments); }, desaturate: function() { return this._applyModification(desaturate, arguments); }, saturate: function() { return this._applyModification(saturate, arguments); }, greyscale: function() { return this._applyModification(greyscale, arguments); }, spin: function() { return this._applyModification(spin, arguments); }, _applyCombination: function(fn, args) { return fn.apply(null, [this].concat([].slice.call(args))); }, analogous: function() { return this._applyCombination(analogous, arguments); }, complement: function() { return this._applyCombination(complement, arguments); }, monochromatic: function() { return this._applyCombination(monochromatic, arguments); }, splitcomplement: function() { return this._applyCombination(splitcomplement, arguments); }, triad: function() { return this._applyCombination(triad, arguments); }, tetrad: function() { return this._applyCombination(tetrad, arguments); } }; // If input is an object, force 1 into "1.0" to handle ratios properly // String input requires "1.0" as input, so 1 will be treated as 1 tinycolor.fromRatio = function(color, opts) { if (typeof color == "object") { var newColor = {}; for (var i in color) { if (color.hasOwnProperty(i)) { if (i === "a") { newColor[i] = color[i]; } else { newColor[i] = convertToPercentage(color[i]); } } } color = newColor; } return tinycolor(color, opts); }; // Given a string or object, convert that input to RGB // Possible string inputs: // // "red" // "#f00" or "f00" // "#ff0000" or "ff0000" // "#ff000000" or "ff000000" // "rgb 255 0 0" or "rgb (255, 0, 0)" // "rgb 1.0 0 0" or "rgb (1, 0, 0)" // "rgba (255, 0, 0, 1)" or "rgba 255, 0, 0, 1" // "rgba (1.0, 0, 0, 1)" or "rgba 1.0, 0, 0, 1" // "hsl(0, 100%, 50%)" or "hsl 0 100% 50%" // "hsla(0, 100%, 50%, 1)" or "hsla 0 100% 50%, 1" // "hsv(0, 100%, 100%)" or "hsv 0 100% 100%" // function inputToRGB(color) { var rgb = { r: 0, g: 0, b: 0 }; var a = 1; var ok = false; var format = false; if (typeof color == "string") { color = stringInputToObject(color); } if (typeof color == "object") { if (color.hasOwnProperty("r") && color.hasOwnProperty("g") && color.hasOwnProperty("b")) { rgb = rgbToRgb(color.r, color.g, color.b); ok = true; format = String(color.r).substr(-1) === "%" ? "prgb" : "rgb"; } else if (color.hasOwnProperty("h") && color.hasOwnProperty("s") && color.hasOwnProperty("v")) { color.s = convertToPercentage(color.s); color.v = convertToPercentage(color.v); rgb = hsvToRgb(color.h, color.s, color.v); ok = true; format = "hsv"; } else if (color.hasOwnProperty("h") && color.hasOwnProperty("s") && color.hasOwnProperty("l")) { color.s = convertToPercentage(color.s); color.l = convertToPercentage(color.l); rgb = hslToRgb(color.h, color.s, color.l); ok = true; format = "hsl"; } if (color.hasOwnProperty("a")) { a = color.a; } } a = boundAlpha(a); return { ok: ok, format: color.format || format, r: mathMin(255, mathMax(rgb.r, 0)), g: mathMin(255, mathMax(rgb.g, 0)), b: mathMin(255, mathMax(rgb.b, 0)), a: a }; } // Conversion Functions // -------------------- // `rgbToHsl`, `rgbToHsv`, `hslToRgb`, `hsvToRgb` modified from: // // `rgbToRgb` // Handle bounds / percentage checking to conform to CSS color spec // // *Assumes:* r, g, b in [0, 255] or [0, 1] // *Returns:* { r, g, b } in [0, 255] function rgbToRgb(r, g, b){ return { r: bound01(r, 255) * 255, g: bound01(g, 255) * 255, b: bound01(b, 255) * 255 }; } // `rgbToHsl` // Converts an RGB color value to HSL. // *Assumes:* r, g, and b are contained in [0, 255] or [0, 1] // *Returns:* { h, s, l } in [0,1] function rgbToHsl(r, g, b) { r = bound01(r, 255); g = bound01(g, 255); b = bound01(b, 255); var max = mathMax(r, g, b), min = mathMin(r, g, b); var h, s, l = (max + min) / 2; if(max == min) { h = s = 0; // achromatic } else { var d = max - min; s = l > 0.5 ? d / (2 - max - min) : d / (max + min); switch(max) { case r: h = (g - b) / d + (g < b ? 6 : 0); break; case g: h = (b - r) / d + 2; break; case b: h = (r - g) / d + 4; break; } h /= 6; } return { h: h, s: s, l: l }; } // `hslToRgb` // Converts an HSL color value to RGB. // *Assumes:* h is contained in [0, 1] or [0, 360] and s and l are contained [0, 1] or [0, 100] // *Returns:* { r, g, b } in the set [0, 255] function hslToRgb(h, s, l) { var r, g, b; h = bound01(h, 360); s = bound01(s, 100); l = bound01(l, 100); function hue2rgb(p, q, t) { if(t < 0) t += 1; if(t > 1) t -= 1; if(t < 1/6) return p + (q - p) * 6 * t; if(t < 1/2) return q; if(t < 2/3) return p + (q - p) * (2/3 - t) * 6; return p; } if(s === 0) { r = g = b = l; // achromatic } else { var q = l < 0.5 ? l * (1 + s) : l + s - l * s; var p = 2 * l - q; r = hue2rgb(p, q, h + 1/3); g = hue2rgb(p, q, h); b = hue2rgb(p, q, h - 1/3); } return { r: r * 255, g: g * 255, b: b * 255 }; } // `rgbToHsv` // Converts an RGB color value to HSV // *Assumes:* r, g, and b are contained in the set [0, 255] or [0, 1] // *Returns:* { h, s, v } in [0,1] function rgbToHsv(r, g, b) { r = bound01(r, 255); g = bound01(g, 255); b = bound01(b, 255); var max = mathMax(r, g, b), min = mathMin(r, g, b); var h, s, v = max; var d = max - min; s = max === 0 ? 0 : d / max; if(max == min) { h = 0; // achromatic } else { switch(max) { case r: h = (g - b) / d + (g < b ? 6 : 0); break; case g: h = (b - r) / d + 2; break; case b: h = (r - g) / d + 4; break; } h /= 6; } return { h: h, s: s, v: v }; } // `hsvToRgb` // Converts an HSV color value to RGB. // *Assumes:* h is contained in [0, 1] or [0, 360] and s and v are contained in [0, 1] or [0, 100] // *Returns:* { r, g, b } in the set [0, 255] function hsvToRgb(h, s, v) { h = bound01(h, 360) * 6; s = bound01(s, 100); v = bound01(v, 100); var i = math.floor(h), f = h - i, p = v * (1 - s), q = v * (1 - f * s), t = v * (1 - (1 - f) * s), mod = i % 6, r = [v, q, p, p, t, v][mod], g = [t, v, v, q, p, p][mod], b = [p, p, t, v, v, q][mod]; return { r: r * 255, g: g * 255, b: b * 255 }; } // `rgbToHex` // Converts an RGB color to hex // Assumes r, g, and b are contained in the set [0, 255] // Returns a 3 or 6 character hex function rgbToHex(r, g, b, allow3Char) { var hex = [ pad2(mathRound(r).toString(16)), pad2(mathRound(g).toString(16)), pad2(mathRound(b).toString(16)) ]; // Return a 3 character hex if possible if (allow3Char && hex[0].charAt(0) == hex[0].charAt(1) && hex[1].charAt(0) == hex[1].charAt(1) && hex[2].charAt(0) == hex[2].charAt(1)) { return hex[0].charAt(0) + hex[1].charAt(0) + hex[2].charAt(0); } return hex.join(""); } // `rgbaToHex` // Converts an RGBA color plus alpha transparency to hex // Assumes r, g, b and a are contained in the set [0, 255] // Returns an 8 character hex function rgbaToHex(r, g, b, a) { var hex = [ pad2(convertDecimalToHex(a)), pad2(mathRound(r).toString(16)), pad2(mathRound(g).toString(16)), pad2(mathRound(b).toString(16)) ]; return hex.join(""); } // `equals` // Can be called with any tinycolor input tinycolor.equals = function (color1, color2) { if (!color1 || !color2) { return false; } return tinycolor(color1).toRgbString() == tinycolor(color2).toRgbString(); }; tinycolor.random = function() { return tinycolor.fromRatio({ r: mathRandom(), g: mathRandom(), b: mathRandom() }); }; // Modification Functions // ---------------------- // Thanks to less.js for some of the basics here // function desaturate(color, amount) { amount = (amount === 0) ? 0 : (amount || 10); var hsl = tinycolor(color).toHsl(); hsl.s -= amount / 100; hsl.s = clamp01(hsl.s); return tinycolor(hsl); } function saturate(color, amount) { amount = (amount === 0) ? 0 : (amount || 10); var hsl = tinycolor(color).toHsl(); hsl.s += amount / 100; hsl.s = clamp01(hsl.s); return tinycolor(hsl); } function greyscale(color) { return tinycolor(color).desaturate(100); } function lighten (color, amount) { amount = (amount === 0) ? 0 : (amount || 10); var hsl = tinycolor(color).toHsl(); hsl.l += amount / 100; hsl.l = clamp01(hsl.l); return tinycolor(hsl); } function brighten(color, amount) { amount = (amount === 0) ? 0 : (amount || 10); var rgb = tinycolor(color).toRgb(); rgb.r = mathMax(0, mathMin(255, rgb.r - mathRound(255 * - (amount / 100)))); rgb.g = mathMax(0, mathMin(255, rgb.g - mathRound(255 * - (amount / 100)))); rgb.b = mathMax(0, mathMin(255, rgb.b - mathRound(255 * - (amount / 100)))); return tinycolor(rgb); } function darken (color, amount) { amount = (amount === 0) ? 0 : (amount || 10); var hsl = tinycolor(color).toHsl(); hsl.l -= amount / 100; hsl.l = clamp01(hsl.l); return tinycolor(hsl); } // Spin takes a positive or negative amount within [-360, 360] indicating the change of hue. // Values outside of this range will be wrapped into this range. function spin(color, amount) { var hsl = tinycolor(color).toHsl(); var hue = (mathRound(hsl.h) + amount) % 360; hsl.h = hue < 0 ? 360 + hue : hue; return tinycolor(hsl); } // Combination Functions // --------------------- // Thanks to jQuery xColor for some of the ideas behind these // function complement(color) { var hsl = tinycolor(color).toHsl(); hsl.h = (hsl.h + 180) % 360; return tinycolor(hsl); } function triad(color) { var hsl = tinycolor(color).toHsl(); var h = hsl.h; return [ tinycolor(color), tinycolor({ h: (h + 120) % 360, s: hsl.s, l: hsl.l }), tinycolor({ h: (h + 240) % 360, s: hsl.s, l: hsl.l }) ]; } function tetrad(color) { var hsl = tinycolor(color).toHsl(); var h = hsl.h; return [ tinycolor(color), tinycolor({ h: (h + 90) % 360, s: hsl.s, l: hsl.l }), tinycolor({ h: (h + 180) % 360, s: hsl.s, l: hsl.l }), tinycolor({ h: (h + 270) % 360, s: hsl.s, l: hsl.l }) ]; } function splitcomplement(color) { var hsl = tinycolor(color).toHsl(); var h = hsl.h; return [ tinycolor(color), tinycolor({ h: (h + 72) % 360, s: hsl.s, l: hsl.l}), tinycolor({ h: (h + 216) % 360, s: hsl.s, l: hsl.l}) ]; } function analogous(color, results, slices) { results = results || 6; slices = slices || 30; var hsl = tinycolor(color).toHsl(); var part = 360 / slices; var ret = [tinycolor(color)]; for (hsl.h = ((hsl.h - (part * results >> 1)) + 720) % 360; --results; ) { hsl.h = (hsl.h + part) % 360; ret.push(tinycolor(hsl)); } return ret; } function monochromatic(color, results) { results = results || 6; var hsv = tinycolor(color).toHsv(); var h = hsv.h, s = hsv.s, v = hsv.v; var ret = []; var modification = 1 / results; while (results--) { ret.push(tinycolor({ h: h, s: s, v: v})); v = (v + modification) % 1; } return ret; } // Utility Functions // --------------------- tinycolor.mix = function(color1, color2, amount) { amount = (amount === 0) ? 0 : (amount || 50); var rgb1 = tinycolor(color1).toRgb(); var rgb2 = tinycolor(color2).toRgb(); var p = amount / 100; var w = p * 2 - 1; var a = rgb2.a - rgb1.a; var w1; if (w * a == -1) { w1 = w; } else { w1 = (w + a) / (1 + w * a); } w1 = (w1 + 1) / 2; var w2 = 1 - w1; var rgba = { r: rgb2.r * w1 + rgb1.r * w2, g: rgb2.g * w1 + rgb1.g * w2, b: rgb2.b * w1 + rgb1.b * w2, a: rgb2.a * p + rgb1.a * (1 - p) }; return tinycolor(rgba); }; // Readability Functions // --------------------- // // `readability` // Analyze the 2 colors and returns an object with the following properties: // `brightness`: difference in brightness between the two colors // `color`: difference in color/hue between the two colors tinycolor.readability = function(color1, color2) { var c1 = tinycolor(color1); var c2 = tinycolor(color2); var rgb1 = c1.toRgb(); var rgb2 = c2.toRgb(); var brightnessA = c1.getBrightness(); var brightnessB = c2.getBrightness(); var colorDiff = ( Math.max(rgb1.r, rgb2.r) - Math.min(rgb1.r, rgb2.r) + Math.max(rgb1.g, rgb2.g) - Math.min(rgb1.g, rgb2.g) + Math.max(rgb1.b, rgb2.b) - Math.min(rgb1.b, rgb2.b) ); return { brightness: Math.abs(brightnessA - brightnessB), color: colorDiff }; }; // `readable` // http://www.w3.org/TR/AERT#color-contrast // Ensure that foreground and background color combinations provide sufficient contrast. // *Example* // tinycolor.isReadable("#000", "#111") => false tinycolor.isReadable = function(color1, color2) { var readability = tinycolor.readability(color1, color2); return readability.brightness > 125 && readability.color > 500; }; // `mostReadable` // Given a base color and a list of possible foreground or background // colors for that base, returns the most readable color. // *Example* // tinycolor.mostReadable("#123", ["#fff", "#000"]) => "#000" tinycolor.mostReadable = function(baseColor, colorList) { var bestColor = null; var bestScore = 0; var bestIsReadable = false; for (var i=0; i < colorList.length; i++) { // We normalize both around the "acceptable" breaking point, // but rank brightness constrast higher than hue. var readability = tinycolor.readability(baseColor, colorList[i]); var readable = readability.brightness > 125 && readability.color > 500; var score = 3 * (readability.brightness / 125) + (readability.color / 500); if ((readable && ! bestIsReadable) || (readable && bestIsReadable && score > bestScore) || ((! readable) && (! bestIsReadable) && score > bestScore)) { bestIsReadable = readable; bestScore = score; bestColor = tinycolor(colorList[i]); } } return bestColor; }; // Big List of Colors // ------------------ // var names = tinycolor.names = { aliceblue: "f0f8ff", antiquewhite: "faebd7", aqua: "0ff", aquamarine: "7fffd4", azure: "f0ffff", beige: "f5f5dc", bisque: "ffe4c4", black: "000", blanchedalmond: "ffebcd", blue: "00f", blueviolet: "8a2be2", brown: "a52a2a", burlywood: "deb887", burntsienna: "ea7e5d", cadetblue: "5f9ea0", chartreuse: "7fff00", chocolate: "d2691e", coral: "ff7f50", cornflowerblue: "6495ed", cornsilk: "fff8dc", crimson: "dc143c", cyan: "0ff", darkblue: "00008b", darkcyan: "008b8b", darkgoldenrod: "b8860b", darkgray: "a9a9a9", darkgreen: "006400", darkgrey: "a9a9a9", darkkhaki: "bdb76b", darkmagenta: "8b008b", darkolivegreen: "556b2f", darkorange: "ff8c00", darkorchid: "9932cc", darkred: "8b0000", darksalmon: "e9967a", darkseagreen: "8fbc8f", darkslateblue: "483d8b", darkslategray: "2f4f4f", darkslategrey: "2f4f4f", darkturquoise: "00ced1", darkviolet: "9400d3", deeppink: "ff1493", deepskyblue: "00bfff", dimgray: "696969", dimgrey: "696969", dodgerblue: "1e90ff", firebrick: "b22222", floralwhite: "fffaf0", forestgreen: "228b22", fuchsia: "f0f", gainsboro: "dcdcdc", ghostwhite: "f8f8ff", gold: "ffd700", goldenrod: "daa520", gray: "808080", green: "008000", greenyellow: "adff2f", grey: "808080", honeydew: "f0fff0", hotpink: "ff69b4", indianred: "cd5c5c", indigo: "4b0082", ivory: "fffff0", khaki: "f0e68c", lavender: "e6e6fa", lavenderblush: "fff0f5", lawngreen: "7cfc00", lemonchiffon: "fffacd", lightblue: "add8e6", lightcoral: "f08080", lightcyan: "e0ffff", lightgoldenrodyellow: "fafad2", lightgray: "d3d3d3", lightgreen: "90ee90", lightgrey: "d3d3d3", lightpink: "ffb6c1", lightsalmon: "ffa07a", lightseagreen: "20b2aa", lightskyblue: "87cefa", lightslategray: "789", lightslategrey: "789", lightsteelblue: "b0c4de", lightyellow: "ffffe0", lime: "0f0", limegreen: "32cd32", linen: "faf0e6", magenta: "f0f", maroon: "800000", mediumaquamarine: "66cdaa", mediumblue: "0000cd", mediumorchid: "ba55d3", mediumpurple: "9370db", mediumseagreen: "3cb371", mediumslateblue: "7b68ee", mediumspringgreen: "00fa9a", mediumturquoise: "48d1cc", mediumvioletred: "c71585", midnightblue: "191970", mintcream: "f5fffa", mistyrose: "ffe4e1", moccasin: "ffe4b5", navajowhite: "ffdead", navy: "000080", oldlace: "fdf5e6", olive: "808000", olivedrab: "6b8e23", orange: "ffa500", orangered: "ff4500", orchid: "da70d6", palegoldenrod: "eee8aa", palegreen: "98fb98", paleturquoise: "afeeee", palevioletred: "db7093", papayawhip: "ffefd5", peachpuff: "ffdab9", peru: "cd853f", pink: "ffc0cb", plum: "dda0dd", powderblue: "b0e0e6", purple: "800080", red: "f00", rosybrown: "bc8f8f", royalblue: "4169e1", saddlebrown: "8b4513", salmon: "fa8072", sandybrown: "f4a460", seagreen: "2e8b57", seashell: "fff5ee", sienna: "a0522d", silver: "c0c0c0", skyblue: "87ceeb", slateblue: "6a5acd", slategray: "708090", slategrey: "708090", snow: "fffafa", springgreen: "00ff7f", steelblue: "4682b4", tan: "d2b48c", teal: "008080", thistle: "d8bfd8", tomato: "ff6347", turquoise: "40e0d0", violet: "ee82ee", wheat: "f5deb3", white: "fff", whitesmoke: "f5f5f5", yellow: "ff0", yellowgreen: "9acd32" }; // Make it easy to access colors via `hexNames[hex]` var hexNames = tinycolor.hexNames = flip(names); // Utilities // --------- // `{ 'name1': 'val1' }` becomes `{ 'val1': 'name1' }` function flip(o) { var flipped = { }; for (var i in o) { if (o.hasOwnProperty(i)) { flipped[o[i]] = i; } } return flipped; } // Return a valid alpha value [0,1] with all invalid values being set to 1 function boundAlpha(a) { a = parseFloat(a); if (isNaN(a) || a < 0 || a > 1) { a = 1; } return a; } // Take input from [0, n] and return it as [0, 1] function bound01(n, max) { if (isOnePointZero(n)) { n = "100%"; } var processPercent = isPercentage(n); n = mathMin(max, mathMax(0, parseFloat(n))); // Automatically convert percentage into number if (processPercent) { n = parseInt(n * max, 10) / 100; } // Handle floating point rounding errors if ((math.abs(n - max) < 0.000001)) { return 1; } // Convert into [0, 1] range if it isn't already return (n % max) / parseFloat(max); } // Force a number between 0 and 1 function clamp01(val) { return mathMin(1, mathMax(0, val)); } // Parse a base-16 hex value into a base-10 integer function parseIntFromHex(val) { return parseInt(val, 16); } // Need to handle 1.0 as 100%, since once it is a number, there is no difference between it and 1 // function isOnePointZero(n) { return typeof n == "string" && n.indexOf('.') != -1 && parseFloat(n) === 1; } // Check to see if string passed in is a percentage function isPercentage(n) { return typeof n === "string" && n.indexOf('%') != -1; } // Force a hex value to have 2 characters function pad2(c) { return c.length == 1 ? '0' + c : '' + c; } // Replace a decimal with it's percentage value function convertToPercentage(n) { if (n <= 1) { n = (n * 100) + "%"; } return n; } // Converts a decimal to a hex value function convertDecimalToHex(d) { return Math.round(parseFloat(d) * 255).toString(16); } // Converts a hex value to a decimal function convertHexToDecimal(h) { return (parseIntFromHex(h) / 255); } var matchers = (function() { // var CSS_INTEGER = "[-\\+]?\\d+%?"; // var CSS_NUMBER = "[-\\+]?\\d*\\.\\d+%?"; // Allow positive/negative integer/number. Don't capture the either/or, just the entire outcome. var CSS_UNIT = "(?:" + CSS_NUMBER + ")|(?:" + CSS_INTEGER + ")"; // Actual matching. // Parentheses and commas are optional, but not required. // Whitespace can take the place of commas or opening paren var PERMISSIVE_MATCH3 = "[\\s|\\(]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")\\s*\\)?"; var PERMISSIVE_MATCH4 = "[\\s|\\(]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")\\s*\\)?"; return { rgb: new RegExp("rgb" + PERMISSIVE_MATCH3), rgba: new RegExp("rgba" + PERMISSIVE_MATCH4), hsl: new RegExp("hsl" + PERMISSIVE_MATCH3), hsla: new RegExp("hsla" + PERMISSIVE_MATCH4), hsv: new RegExp("hsv" + PERMISSIVE_MATCH3), hex3: /^([0-9a-fA-F]{1})([0-9a-fA-F]{1})([0-9a-fA-F]{1})$/, hex6: /^([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})$/, hex8: /^([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})$/ }; })(); // `stringInputToObject` // Permissive string parsing. Take in a number of formats, and output an object // based on detected format. Returns `{ r, g, b }` or `{ h, s, l }` or `{ h, s, v}` function stringInputToObject(color) { color = color.replace(trimLeft,'').replace(trimRight, '').toLowerCase(); var named = false; if (names[color]) { color = names[color]; named = true; } else if (color == 'transparent') { return { r: 0, g: 0, b: 0, a: 0, format: "name" }; } // Try to match string input using regular expressions. // Keep most of the number bounding out of this function - don't worry about [0,1] or [0,100] or [0,360] // Just return an object and let the conversion functions handle that. // This way the result will be the same whether the tinycolor is initialized with string or object. var match; if ((match = matchers.rgb.exec(color))) { return { r: match[1], g: match[2], b: match[3] }; } if ((match = matchers.rgba.exec(color))) { return { r: match[1], g: match[2], b: match[3], a: match[4] }; } if ((match = matchers.hsl.exec(color))) { return { h: match[1], s: match[2], l: match[3] }; } if ((match = matchers.hsla.exec(color))) { return { h: match[1], s: match[2], l: match[3], a: match[4] }; } if ((match = matchers.hsv.exec(color))) { return { h: match[1], s: match[2], v: match[3] }; } if ((match = matchers.hex8.exec(color))) { return { a: convertHexToDecimal(match[1]), r: parseIntFromHex(match[2]), g: parseIntFromHex(match[3]), b: parseIntFromHex(match[4]), format: named ? "name" : "hex8" }; } if ((match = matchers.hex6.exec(color))) { return { r: parseIntFromHex(match[1]), g: parseIntFromHex(match[2]), b: parseIntFromHex(match[3]), format: named ? "name" : "hex" }; } if ((match = matchers.hex3.exec(color))) { return { r: parseIntFromHex(match[1] + '' + match[1]), g: parseIntFromHex(match[2] + '' + match[2]), b: parseIntFromHex(match[3] + '' + match[3]), format: named ? "name" : "hex" }; } return false; } // Node: Export function if (typeof module !== "undefined" && module.exports) { module.exports = tinycolor; } // AMD/requirejs: Define the module else if (typeof define === 'function' && define.amd) { define(function () {return tinycolor;}); } // Browser: Expose to window else { window.tinycolor = tinycolor; } })();