Circadian Color Temperature Map Free Download

The Circadian Color Temperature Map is a reference tool for designing light that mimics the sun’s natural day and night cycles.

Use it to design products that synchronize with users’ circadian rhythms, supporting health, concentration, and alertness at the right times of day.

Apply it to build lighting systems, screen brightness schedules, or app experiences that adapt to biological rhythms throughout the day.

The map plots color temperature in Kelvin (1,000–11,000K) against the natural light cycle from sunrise to sunset, giving designers a structured framework for circadian-aligned color decisions.