Grab colors and find RGB and HTML values, with Color Cop
Color Cop can grab a color from anywhere at the screen and give its rgb or html description.
It is a multi-purpose color picker for web designers and programmers, featuring an eyedropper, magnifier, variable magnification levels, 3 by 3 and 5 by 5 average sampling, snap to websafe, color history, and a 42 color complementary palette.
Color Cop will convert RGB decimal values to Hexadecimal color codes. It has color code support for HTML Hex, Delphi Hex, PowerBuilder, Visual Basic Hex, and Visual C++ Hex. Color Cop is a multi-purpose color picker for windows.
If you are in a hurry you can also use this On-Line HTML RGB color picker and converter.
Read more on how to use Color Cop, or download it and start playing.