RGB Color Gradient Maker Create a gradient (gradual color change) between 2 RGB colors http://www.perbang.dk/rgbgradient/
Color Wheel & Color Map Color wheel with color names and color map. Easy RGB color navigation. http://www.procato.com/color+wheel/
RGB Chart & Multi Tool Detailed information for each color in the RGB color space. Includes conversions, color schemes, color search and much more. http://www.perbang.dk/rgb/