Color Palette Generator Free

8 min readUpdated 2026-06-10

Most palette generators produce museum pieces — palettes that look great as isolated swatches but fail badly when applied to real interfaces with text, borders, backgrounds, and interactive states. Here's how to evaluate a palette generator by its output quality.

evaluation

Coolors.co generates palettes by locking one color and randomizing the rest via HSL variation. Adobe Color uses actual color harmony rules (complementary, triad, etc.). Both produce different kinds of palettes — one for exploration, one for production.

Testing & Standards

Coolors.co generates palettes by locking one color and randomizing the rest via HSL variation. Adobe Color uses actual color harmony rules (complementary, triad, etc.). Both produce different kinds of palettes — one for exploration, one for production.

top tools

Coolors.co generates palettes by locking one color and randomizing the rest via HSL variation. Adobe Color uses actual color harmony rules (complementary, triad, etc.). Both produce different kinds of palettes — one for exploration, one for production.

custom solution

Coolors.co generates palettes by locking one color and randomizing the rest via HSL variation. Adobe Color uses actual color harmony rules (complementary, triad, etc.). Both produce different kinds of palettes — one for exploration, one for production.

Try It Yourself

Use these free tools to apply what you learned: