Free color tools (or 'colour tools' in the UK) for webmasters and web designers:
Websafe Color Picker Tool
all web-safe colors (6×6x6 = 216 colors). Color Picker Tool
16×16x16 = 4096 colors.
Make Websafe Colors
convert any color to a web-safe color. Color Mixer Tool
for mixing new colors.
Create Colors by RGB Values
mix color values to create new colors. Combine Colors Tool
combine two colors into one.
Color Matcher Tool
find how well two colors match. Compare Colors Tool
compare six color samples.
Close Colors Tool
find similiar colors to a chosen color. Opposite Color Tool
complementary color tool.
Random Color Tool
eight random colors & their values. Text on Background Tool
foreground text / background color combinations.
More Good Color Stuff:
Websafe Color Chart - web-safe color chart with color codes.
About Web Colors - In-depth article about color on the web.
Full Color Spectrum - Shows all colors.
★★★★★ This is fantastic! Very precise+ The best I've seen! I'm going to use it as my main color picker/schemer...and worries me that it might go off line.
Dark gray background.. well thought! black and white are too extreme
About the Doughnut Color PickerWhen I created the image of the color picker it was late at night and once more the computer absorbed all my attention. I forgot to eat on time and must have got very hungry. The moment I saw the image, the Doughnut Color Picker was born.\n\nWhy did I create this color picker?Research into color made me want a different kind of color picker:I wanted a color wheel styled color pickerI wanted a color picker in HSL color spaceI wanted a hue/lightness area on a 360 scaleI wanted a big and a small preview squareI wanted luminance values in terms of RGB greyI wanted to instantly switch to a gray scaleI wanted the preview to update without click & holdI wanted a color clipboardI wanted an online color picker\n\nhttp://www.workwithcolor.com/hsl-color-schemer-01.htm?q=FF0080,007FFF,80FF00,808080,808080,808080,808080,808080,808080,808080