Creationguide.com

Color Scheme Tips

checkbox Limit the number of colors used in your Web site's interface to three or four complementary colors. If you're unsure of complementary color combinations, use a color wheel.
checkbox Use contrasting colors, especially if you're using a colored background.
checkbox Keep your colors appropriate for your message.
checkbox Consult the Web-safe color palette. Whenever possible, opt to use Web-safe colors to avoid unnecessary dithering.
checkbox If you can't decide which colors will work best for you, go for black text on a white background. The standard black-on-white combination is pretty much bulletproof when it comes to readability and design sense.