public static void NextColor(out HslColor color, ColorRange range)
{
var maxH = range.Max.H >= range.Min.H
? range.Max.H
: range.Max.H + 360;
color = new HslColor(NextSingle(range.Min.H, maxH),
NextSingle(range.Min.S, range.Max.S),
NextSingle(range.Min.L, range.Max.L));
}