Color Temperature Converter
Color Temperature Converter
Convert between color temperatures in Kelvin, mired values, and CRI ratings for photography and videography white balance.
Formula
Mired = 1,000,000 / Kelvin; Mired Shift = Target Mired - Source Mired; Positive shift = warming, Negative shift = cooling
Frequently Asked Questions
What is mired value?
Mired (micro reciprocal degree) equals 1,000,000 divided by the color temperature in Kelvin. Mired shifts are more perceptually uniform than Kelvin differences.
What is the difference between CTO and CTB gels?
CTO (Color Temperature Orange) warms light, shifting it toward tungsten. CTB (Color Temperature Blue) cools light, shifting it toward daylight.
What white balance should I set for mixed lighting?
Set your camera to match the dominant light source, then use gels on secondary lights to match. Or shoot RAW and adjust in post-production.