Color Palette Generator
Generate harmonious color palettes from a base color or uploaded image.
Reviewed by the ToolNestr Editorial Team — July 2026
How color harmonies work
Color harmonies are defined by angles on the HSL color wheel. Complementary colors sit 180° apart and create maximum contrast. Analogous colors sit within 30-60° of each other for a serene, cohesive look. Triadic colors are spaced 120° apart and provide balanced contrast. Choosing the right harmony for your project sets the mood and visual hierarchy of your design.
Use cases
Build consistent color systems for websites and applications using harmonious base palettes.
Develop brand color palettes that work across print, web, and social media touchpoints.
Create accessible chart color schemes that are distinct for viewers with color blindness.
Plan room color schemes using complementary and analogous color relationships.
Tips
- Use the 60-30-10 rule: 60% dominant, 30% secondary, 10% accent color.
- Test contrast ratios for accessibility — WCAG AA requires 4.5:1 for normal text.
- Analogous palettes are safe and pleasing, complementary palettes create energy and tension.
- Consider color blindness — avoid relying solely on red/green contrasts.
Related tools
Frequently asked questions
What is color harmony?
Color harmony uses the color wheel to find colors that look pleasing together — complementary, analogous, triadic, and more.
Can I extract colors from an image?
Yes — upload any image and the tool extracts dominant colors using canvas pixel sampling.
How many colors are in a palette?
Each palette has 5 colors with their hex codes, ready to copy and use in your projects.
What is the 60-30-10 rule?
A design principle: 60% dominant color, 30% secondary color, 10% accent color for balanced designs.