parsecolor

Benchmark created by zyulyaev on October 23, 2014

Setup

var c = document.createElement("canvas");
    c.width = c.height = 1;
    var ctx = c.getContext("2d");
    
    var colors = {
        "aliceblue": "#f0f8ff",
        "antiquewhite": "#faebd7",
        "aqua": "#00ffff",
        "aquamarine": "#7fffd4",
        "azure": "#f0ffff",
        "beige": "#f5f5dc",
        "bisque": "#ffe4c4",
        "black": "#000000",
        "blanchedalmond": "#ffebcd",
        "blue": "#0000ff",
        "blueviolet": "#8a2be2",
        "brown": "#a52a2a",
        "burlywood": "#deb887",
        "cadetblue": "#5f9ea0",
        "chartreuse": "#7fff00",
        "chocolate": "#d2691e",
        "coral": "#ff7f50",
        "cornflowerblue": "#6495ed",
        "cornsilk": "#fff8dc",
        "crimson": "#dc143c",
        "cyan": "#00ffff",
        "darkblue": "#00008b",
        "darkcyan": "#008b8b",
        "darkgoldenrod": "#b8860b",
        "darkgray": "#a9a9a9",
        "darkgreen": "#006400",
        "darkkhaki": "#bdb76b",
        "darkmagenta": "#8b008b",
        "darkolivegreen": "#556b2f",
        "darkorange": "#ff8c00",
        "darkorchid": "#9932cc",
        "darkred": "#8b0000",
        "darksalmon": "#e9967a",
        "darkseagreen": "#8fbc8f",
        "darkslateblue": "#483d8b",
        "darkslategray": "#2f4f4f",
        "darkturquoise": "#00ced1",
        "darkviolet": "#9400d3",
        "deeppink": "#ff1493",
        "deepskyblue": "#00bfff",
        "dimgray": "#696969",
        "dodgerblue": "#1e90ff",
        "firebrick": "#b22222",
        "floralwhite": "#fffaf0",
        "forestgreen": "#228b22",
        "fuchsia": "#ff00ff",
        "gainsboro": "#dcdcdc",
        "ghostwhite": "#f8f8ff",
        "gold": "#ffd700",
        "goldenrod": "#daa520",
        "gray": "#808080",
        "green": "#008000",
        "greenyellow": "#adff2f",
        "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",
        "lightgrey": "#d3d3d3",
        "lightgreen": "#90ee90",
        "lightpink": "#ffb6c1",
        "lightsalmon": "#ffa07a",
        "lightseagreen": "#20b2aa",
        "lightskyblue": "#87cefa",
        "lightslategray": "#778899",
        "lightsteelblue": "#b0c4de",
        "lightyellow": "#ffffe0",
        "lime": "#00ff00",
        "limegreen": "#32cd32",
        "linen": "#faf0e6",
        "magenta": "#ff00ff",
        "maroon": "#800000",
        "mediumaquamarine": "#66cdaa",
        "mediumblue": "#0000cd",
        "mediumorchid": "#ba55d3",
        "mediumpurple": "#9370d8",
        "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": "#d87093",
        "papayawhip": "#ffefd5",
        "peachpuff": "#ffdab9",
        "peru": "#cd853f",
        "pink": "#ffc0cb",
        "plum": "#dda0dd",
        "powderblue": "#b0e0e6",
        "purple": "#800080",
        "red": "#ff0000",
        "rosybrown": "#bc8f8f",
        "royalblue": "#4169e1",
        "saddlebrown": "#8b4513",
        "salmon": "#fa8072",
        "sandybrown": "#f4a460",
        "seagreen": "#2e8b57",
        "seashell": "#fff5ee",
        "sienna": "#a0522d",
        "silver": "#c0c0c0",
        "skyblue": "#87ceeb",
        "slateblue": "#6a5acd",
        "slategray": "#708090",
        "snow": "#fffafa",
        "springgreen": "#00ff7f",
        "steelblue": "#4682b4",
        "tan": "#d2b48c",
        "teal": "#008080",
        "thistle": "#d8bfd8",
        "tomato": "#ff6347",
        "turquoise": "#40e0d0",
        "violet": "#ee82ee",
        "wheat": "#f5deb3",
        "white": "#ffffff",
        "whitesmoke": "#f5f5f5",
        "yellow": "#ffff00",
        "yellowgreen": "#9acd32"
    };
    
    var color_names = Object.keys(colors);
    
    var short_hex = /^#[a-f0-9]{3}$/i;
    var long_hex = /^#([a-f0-9]{2})([a-f0-9]{2})([a-f0-9]{2})$/i;
    var rgb_col = /^\s*rgb\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\)\s*$/i;
    
    function parseColor(col) {
        if (col in colors) return colors[col];
        if (col.match(short_hex)) { // #123
                return [parseInt(col[1] + col[1], 16), parseInt(col[2] + col[2], 16), parseInt(col[3] + col[3], 16)];
        }
        var match = long_hex.exec(col);
        if (match) {
                return [parseInt(match[1], 16), parseInt(match[2], 16), parseInt(match[3], 16)];
        }
        match = rgb_col.exec(col);
        if (match) {
                return [match[1] | 0, match[2] | 0, match[3] | 0];
        }
    }
    
    function randomInt(max) {
        return Math.round(Math.random() * max);
    }
    
    function randomColor() {
        switch (randomInt(3)) {
                case 0:
                        return color_names[randomInt(color_names.length - 1)];
                case 1:
                        return "#" + randomInt(15).toString(16) + randomInt(15).toString(16) + randomInt(15).toString(16);
                case 2:
                        return "#" + randomInt(15).toString(16) + randomInt(15).toString(16) + randomInt(15).toString(16) + randomInt(15).toString(16) + randomInt(15).toString(16) + randomInt(15).toString(16) ;
                case 3:
                        return "rgb(" + randomInt(255) + ", " + randomInt(255) + ", " + randomInt(255) + ")";
        }
    }
    
    function parseWithCanvas(col) {
        ctx.fillStyle = col;
        ctx.fillRect(0, 0, 1, 1);
        return ctx.getImageData(0, 0, 1, 1).data;
    }
    
    var div = document.createElement('div');
    
    function parseWithDiv(col) {
        div.style.color = col;
        match = rgb_col.exec(div.style.color);
        return [match[1] | 0, match[2] | 0, match[3] | 0];
    }

Test runner

parseColor(randomColor())

parseWithCanvas(randomColor())

parseWithDiv(randomColor())

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.

• Revision 1: published by zyulyaev on October 23, 2014