Colorcop

Another useful colour site is
http://www.oreilly.com/catalog/wdnut/excerpt/color_names.html
This shows a number of basic colours with their RGB and Hex codes.
And while we are on the subject of colours can I point you to one of the best programs I have on my computer - Colorcop. It enables you to take a little eyedropper and put it anywhere on the screen to see what the RGB and Hex codes are for the colour on which it is placed. You can download it from
http://prall.net/colorcop/download