Here are some of the basic color combos, and what forum genres they are usually used with: Blue & White: Used with default skins, and forums wanting to give off a simple, yet professional scheme. Used on any professional forums. Black & White: Used for professionalism, used on mainly help sites. Dark Colors: Used on gaming sites, never to be used on professional sites, sends visitors away. Green & White: Used on health/money related sites. Post up some color combinations, and I will add them to this list.