When I started doing web design I pretty much stuck to the web safe colors, but then I found that it was nearly impossible to get different color schemes that really worked well with the selection. Anyway, I found that as long as I use the # symbol in front of the hex code the color comes out the same with Netcape and Microsoft Internet Explorer on all of my machines. I recommend not limiting yourself to these colors if you're really interested in design. It will only stunt your creativity.