Explore color theory harmonies generated mathematically in HSL space. Instantly produce high-contrast complementary pairs, balanced triadic schemes, and monochromatic tints for web and brand design.
Runs entirely in your browser
A coherent colour scheme usually follows the relationships of colour theory, and this generator builds them for you from a single starting colour. Enter a hex and it produces harmonies computed in HSL space — complementary pairs, triadic schemes, monochromatic tints and shades — so you get a balanced set rather than colours picked at random.
Working from theory gives palettes that feel intentional: a complementary accent that pops against your base, a triad that stays balanced, or a monochromatic range for a restrained, tonal look. Because the maths is done in HSL, the relationships (hue rotations, lightness steps) are precise rather than eyeballed.
It runs in your browser, so you can explore schemes instantly and privately. Use it to kick off a brand palette, to find an accent colour for a UI, or to generate a tonal range from a colour you already know you want to use.
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