Returns an array of hex based colors starting from a provided color and shifting from dark to light or the reverse.

hexColorSpread.cfm

<cfscript>
    array function shadeColors(string color, numeric percent, numeric iteration) {
        var result = [];
        var currentcolor = arguments.color;
        for (var i = 0; i < arguments.iteration; i++) {
            var R = inputBaseN(currentcolor.mid(1, 2), 16);
            var G = inputBaseN(currentcolor.mid(3, 2), 16);
            var B = inputBaseN(currentcolor.mid(5, 2), 16);

            R = formatBaseN(R * (100 + percent) / 100, 10);
            G = formatBaseN(G * (100 + percent) / 100, 10);
            B = formatBaseN(B * (100 + percent) / 100, 10);

            R = (R < 255) ? R : 255;
            G = (G < 255) ? G : 255;
            B = (B < 255) ? B : 255;

            var RF = formatBaseN(R, 16);
            var RR = ((len(RF) == 1) ? '0' + RF : RF);
            var GF = formatBaseN(G, 16);
            var GG = ((len(GF) == 1) ? '0' + GF : GF);
            var BF = formatBaseN(B, 16);
            var BB = ((len(BF) == 1) ? '0' + BF : BF);

            currentcolor = RR & GG & BB;
            result.append("##" & currentcolor);
        }

        return result;
    }

    writedump(shadeColors("14578d", 5, 20));
</cfscript>