Color
Free color tools
General
Colors on the Web - Nice site with information about color theory and practice, a selection of color schemes, a free color matching program for creating color schemes (Color Wizard) and a random color scheme generator (Color Wheel).Color Schemes
Kuler - Free color schemes and an online tool for creating your own schemes.ColorBlender - An online tool for making color palettes from images. Use your own, or choose one from the Web. You can also veiw palettes made by other users.
Color Hunter - Create a palette by choosing one color and allowing this online tool to find matching colors. I especially find the "Variations" option useful, which displays subtle changes to the original color scheme. You can also view palettes made by others.