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Color Temperature Calculator

Convert between Kelvin temperature and RGB/HEX color values. From warm candlelight to cool daylight.

K
Warm Cool
#FFF5E6
(click to copy)
RGB
rgb(255, 245, 230)
HSL
hsl(38, 100%, 95%)
Description
Daylight Neutral

Common Color Temperatures

Candle
1850K
Warm Bulb
2700K
Soft White
3000K
Cool White
4000K
Daylight
5000K
Neutral White
6500K
Cool Daylight
7500K
Sky Blue
10000K

Frequently asked questions

What does color temperature measure?

It describes the color of light on the Kelvin scale, from about 1,800K for candlelight through 6,500K for daylight to over 10,000K for clear sky. Lower values read warm and orange, higher values cool and blue.

Why does 6,500K look different on my screen than in a photo?

Camera white balance, display calibration, and surrounding colors all shift perception. The Kelvin value describes the light source objectively; it does not guarantee how a particular screen renders it.

How do I use color temperature in UI design?

Use warm tints for calm, ambient surfaces and cool tints for technical or focus-heavy ones, and keep the shift consistent across a theme. Re-check contrast after shifting temperature, since luminance changes with it.