If your looking for a color picker for whatever reason, web design, win forms development, graphic design then check out Visual Color Picker by Novosib Software.  It's a free utility and it has so many different ways of choosing/capturing colors you'll be spoilt for choice.

It also provides you with a simple output screen which you specify your favourite development environments color function and it'll fill it all in for you just ready to copy and paste. Whether it's rgb, cmy, comma separated, hex, you name it'll provide it.