[рони]

инверсия цвета -- цвет можно из Lime , #00FF00, rgb(0,255,0) или rgb(0%,100%,0%) или #FAE по мотивам http://www.tigir.com/javascript.htm
в zip сжатая inversion(color) inversion.js

function getHexRGBColor(a) {
    a = a.replace(/\s/g, "");
    var c = a.match(/^rgb\((\d{1,3}[%]?),(\d{1,3}[%]?),(\d{1,3}[%]?)\)$/i);
    if (c) {
        a = "";
        for (var b = 1; b <= 3; b++) a += Math.round((c[b][c[b].length - 1] == "%" ? 2.55 : 1) * parseInt(c[b], 10)).toString(16).replace(/^(.)$/, "0$1")
    } else a = a.replace(/^#?([\da-f])([\da-f])([\da-f])$/i, "$1$1$2$2$3$3");
    return a
};

function nemedColor2Hex(a) {
    return {
        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",
        feldspar: "#d19275",
        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",
        lightslateblue: "#8470ff",
        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",
        violetred: "#d02090",
        wheat: "#f5deb3",
        white: "#ffffff",
        whitesmoke: "#f5f5f5",
        yellow: "#ffff00",
        yellowgreen: "#9acd32"
    }[a.toLowerCase()] || null
};

function inversion(a) {
    a = nemedColor2Hex(a) || a;
    a = getHexRGBColor(a);
    a = a.match(/^#?([\dabcdef]{2})([\dabcdef]{2})([\dabcdef]{2})$/i);
    if (!a) return false;
    for (var b = 1, c = "#"; b <= 3; b++) c += (255 - parseInt(a[b], 16)).toString(16).toUpperCase().replace(/^(.)$/, "0$1");
    return c
};
alert('#FF0000\n' + inversion('red') + '\n' + inversion('#FF0000')+ '\n' + inversion('#F00')+ '\n' + inversion('F00'));