What is a color wheel?

A color wheel is a circular diagram of hues that shows how colors relate to one another. It is the foundation of color theory and is used to build harmonious palettes.

What are complementary colors?

Complementary colors sit directly opposite each other on the color wheel (180 degrees apart). Pairing them creates the highest possible contrast and visual impact.

What is the difference between triadic and tetradic harmonies?

A triadic harmony uses three colors evenly spaced on the wheel (120 degrees apart). A tetradic harmony uses four colors arranged in two complementary pairs.

How do I pick a good color scheme?

Start with a base color, then use the wheel to find complementary, analogous or triadic mates. Limit yourself to 3-5 colors and check contrast for accessibility.