I just came across a free application that’s already saved me the frustration of going through a style sheet trying to find the exact color value that was used for the background of a form. This is it:
The program called ColorPix will let you grab the color values and screen coordinates of any pixel on your screen. Furthermore, it automatically translates any screen color into RGB, HEX, HSB and CMYK color values, allows you to lock a specific pixel color, magnifies screen areas incase you want to get as close to the pixel as possible and also minimizes to the system tray for quick access. There’s nothing to install as it’s a self contained application and is completely free for use. If you’re interested you can download the program from Color Schemer.