I'm still unable to locate where the colors are defined, and I'd like some help, if anyone has a moment.I've tried tracking it down with Firebug and even searching/grepping for the hex and rgb values in the code, but I think they may not be explicitly defined.In "g.raphael.js", there is a colors function , but it appears to generate on hue, saturation, and brightness (hsb). If possible, I'd like to set the values by hex. /*\ * g.colors ** * An array of color values that charts will iterate through when drawing chart data values. ** \*/ colors: (function () { var hues = , colors = ; for (var i = 0; i < 10; i++) { if (i < hues.length) { colors.push('hsb(' + hues + ',.75, .75)'); } else { colors.push('hsb(' + hues + ', 1, .5)'); } } return colors; })(),