Pick a base color and instantly get 5 harmony-based palettes: complementary (180° opposite), split-complementary (180° ± 30°), triadic (120° apart), analogous (30° on each side), and tetradic (90° apart). Plus a monochromatic ladder of tints / shades of your base color. Each palette includes hex / RGB / HSL.
When to use this
Use for: designing UI color systems (primary + complementary CTA buttons), building brand color palettes, picking accent colors for an existing design, generating data-viz palettes that look intentional, learning color theory in practice by experimenting.
Frequently Asked Questions
What's the best harmony for a brand?
Complementary (high contrast, energetic, but can be harsh) or analogous (calm, harmonious, can be monotonous) are most common. Triadic balances both. Test multiple harmonies before committing - the harmony that looks 'right' for your brand depends on industry, audience, and tone.
Are these palettes WCAG-accessible?
Not automatically. Color harmony doesn't guarantee contrast. Use our built-in WCAG contrast checker on each pair you plan to use as text-on-background. Aim for 4.5:1 ratio for normal text, 3:1 for large text.
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