// TinyColor v1.3.0// https://github.com/bgrins/TinyColor// Brian Grinstead, MIT License var trimLeft = /^\s+/, trimRight = /\s+$/, tinyCounter = 0, math = Math, mathRound = math.round, mathMin = math.min, mathMax = math.max, mathRandom = math.random; 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._originalInput = 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; }, getOriginalInput: function() { return this._originalInput; }, getFormat: function() { return this._format; }, getAlpha: function() { return this._a; }, getBrightness: function() { //http://www.w3.org/TR/AERT#color-contrast var rgb = this.toRgb(); return (rgb.r * 299 + rgb.g * 587 + rgb.b * 114) / 1000; }, getLuminance: function() { //http://www.w3.org/TR/2008/REC-WCAG20-20081211/#relativeluminancedef var rgb = this.toRgb(); var RsRGB, GsRGB, BsRGB, R, G, B; RsRGB = rgb.r/255; GsRGB = rgb.g/255; BsRGB = rgb.b/255; if (RsRGB <= 0.03928) {R = RsRGB / 12.92;} else {R = Math.pow(((RsRGB + 0.055) / 1.055), 2.4);} if (GsRGB <= 0.03928) {G = GsRGB / 12.92;} else {G = Math.pow(((GsRGB + 0.055) / 1.055), 2.4);} if (BsRGB <= 0.03928) {B = BsRGB / 12.92;} else {B = Math.pow(((BsRGB + 0.055) / 1.055), 2.4);} return (0.2126 * R) + (0.7152 * G) + (0.0722 * B); }, 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(); }, clone: function() { return tinycolor(this.toString()); }, _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 1tinycolor.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:// <http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript> // `rgbToRgb`// Handle bounds / percentage checking to conform to CSS color spec// <http://www.w3.org/TR/css3-color/>// *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 hexfunction rgbToHex(r, g, b, allow3Char) { var hex = [ pad2(mathRound(r).toString(16)), pad2(mathRound(g).toString(16)), pad2(mathRound(b).toString(16)) ];Lines 1–500 of 1155. 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// TinyColor v1.3.0 // https://github.com/bgrins/TinyColor // Brian Grinstead, MIT License var trimLeft = /^\s+/, trimRight = /\s+$/, tinyCounter = 0, math = Math, mathRound = math.round, mathMin = math.min, mathMax = math.max, mathRandom = math.random; 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._originalInput = 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; }, getOriginalInput: function() { return this._originalInput; }, getFormat: function() { return this._format; }, getAlpha: function() { return this._a; }, getBrightness: function() { //http://www.w3.org/TR/AERT#color-contrast var rgb = this.toRgb(); return (rgb.r * 299 + rgb.g * 587 + rgb.b * 114) / 1000; }, getLuminance: function() { //http://www.w3.org/TR/2008/REC-WCAG20-20081211/#relativeluminancedef var rgb = this.toRgb(); var RsRGB, GsRGB, BsRGB, R, G, B; RsRGB = rgb.r/255; GsRGB = rgb.g/255; BsRGB = rgb.b/255; if (RsRGB <= 0.03928) {R = RsRGB / 12.92;} else {R = Math.pow(((RsRGB + 0.055) / 1.055), 2.4);} if (GsRGB <= 0.03928) {G = GsRGB / 12.92;} else {G = Math.pow(((GsRGB + 0.055) / 1.055), 2.4);} if (BsRGB <= 0.03928) {B = BsRGB / 12.92;} else {B = Math.pow(((BsRGB + 0.055) / 1.055), 2.4);} return (0.2126 * R) + (0.7152 * G) + (0.0722 * B); }, 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(); }, clone: function() { return tinycolor(this.toString()); }, _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: // <http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript> // `rgbToRgb` // Handle bounds / percentage checking to conform to CSS color spec // <http://www.w3.org/TR/css3-color/> // *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)) ];