Extended Color Mixer i want to share one of my little helpers. - what does it do ? RGB color system is the mathematical description of colors, so to say, it explains colors (a sensual impression) to a machine. in contrast to that, the human eye interprets colors in the HSL (hue-saturation-luminance) matrix. these two systems are not much compatible. if you want to use "neighbour" colors in a gui, or very distant colors for more contrast (e.g. in games), the tuning on the Red-Green-Blue