Related colors are those next to one another on the color wheel. Designers often build color schemes around two or three related colors. Complementary colors are located opposite each other on the color wheel. Blue, for example, is the complement of orange. Complementary colors enhance each other in decorating schemes.
Neutral colors are shades of white, gray or beige.
Most neutrals are tinted slightly with a warm or cool color. Neutral-colored walls provide a backdrop that does not compete with furnishings and accessories.