Open Color

Open-source UI color scheme optimized for usability.

Open Source

Open Color is an open-source color scheme with 13 base colors in 10 carefully calibrated steps each. Designed for UIs, every shade is tested for readability, dark mode use, and semantic role. Used as a reference by many design systems.

#color-system#open-source#ui-colors#design-tokens

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Added May 1, 2026

Verified May 1, 2026

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