Color Theory Tools
Interactive tools for exploring, learning and applying color theory. From the color wheel to harmony analysis to color temperature — everything you need to work with color intentionally.
Color Wheel
Interactive color wheel — click any hue and see its harmonies instantly.
Color Wheel Generator
Generate custom color wheels from any base color with adjustable harmony markers.
Color Harmony Analyzer
See all six color harmonies for any base color at once.
Color Relationships
Explore every color theory relationship with labeled offsets.
Color Temperature Explorer
Understand warm vs cool color psychology across the spectrum.
All Color Harmonies
Complete guide to every color harmony type.
Complementary Colors
Find the opposite color of any hue.
Triadic Colors
Three hues 120° apart for balanced vibrancy.
What Is Color Theory?
Color theory is the body of practical guidance for mixing colors and understanding their visual effects. It encompasses the color wheel, harmony rules (complementary, analogous, triadic, etc.), the psychological impact of color, color temperature, and accessibility principles like contrast ratios.
Designers, painters, photographers, marketers and developers all rely on color theory to make color decisions that are intentional rather than accidental. The tools above let you explore each dimension of color theory interactively — pick a hue and immediately see how it behaves in complementary, analogous, triadic and other relationships.
Where to Start
If you are new to color theory, start with the Color Wheel — it is the most foundational visual tool. Then explore the Color Harmony Analyzer to see all six harmonies at once. After that, the individual harmony tools let you dive into any specific relationship.