Code snippet to generate a contrast colors for some object types. Consider you have a text written in different fonts, and you want to highlight every character with its own color

gistfile1.js

function generatePalette()
{
    // example of test input
    var fontsPalette = {
      "Times New Roman": "",
      "Arial": "",
      "Verdana": ""
    };
    var fonts = Object.keys(fontsPalette);
    var amount = Object.keys(fonts).length;
    var base = 0.9;
    var shadeFactor = (1 - base) * 8 / amount;
    var add = [0, 0, 0];
    for(var i = 0; i < amount; ++i) {
        var step = shadeFactor * (i >> 3);
        for(var j = 0; j < 3; ++j)
            add[j] = (i & (1 << j)) ? shadeFactor + step : step;
        fontsPalette[fonts[i]] = new WebInspector.Color([base + add[1], base + add[0], base + add[2]], WebInspector.Color.Format.RGB);
    }
    return fontsPalette;
}