Colour Temperature Converter
See what 2700K warm white actually looks like, and how blue 6500K daylight really is. Useful when choosing lighting or getting a feel for white balance in photography.
🎨 Everything runs in your browser. No install, no sign-up.
4000K
6500K
Left temperature4000K
Right temperature (for comparison)6500K
Common values
Higher numbers are colder
Counter to how it sounds, a lower Kelvin value is redder and warmer, and a higher one is bluer and colder. The scale comes from heating metal — first red, then white and bluish as it gets hotter. Home lighting sits around 2700–3000K, and a workspace around 4000–5000K.
What this tool does
- 1000K to 12000K slider
- Warm, neutral and daylight presets
- RGB and HEX values
- Compare two temperatures side by side
Other colour tools
Colours may look slightly different depending on your screen and its colour profile.