Color Temperature (Kelvin) to Mired & RGB Converter
Convert blackbody radiation color temperatures (1000K to 12000K) to Micro Reciprocal Degrees (Mired), CTO/CTB correction shifts, and accurate screen RGB/HEX values.
Color Temperature Input
Optical Shift & Color Metrics
What is a Mired and How Does It Relate to Kelvin?
A Mired (short for micro reciprocal degree) is a unit of measurement for color temperature calculated by the formula Mired = 1,000,000 / Kelvin. While the human eye perceives large color differences at low Kelvin values (a 200K shift from 2000K to 2200K is clearly dramatic), the same 200K difference at 7000K is virtually imperceptible. Mireds linearize human perception of color temperature, making them the universal standard for photographic color correction filters (CTO / CTB gels).
Common Lighting Gels and Mired Shifts
CTO (Color Temperature Orange)
Warms daylight (5600K) down to tungsten (3200K). Full CTO delivers a positive shift of approximately +137 Mireds.
CTB (Color Temperature Blue)
Cools warm tungsten (3200K) up to daylight (5600K). Full CTB delivers a negative shift of approximately -137 Mireds.
Frequently Asked Questions
What is the standard white point for digital displays?
The CIE standard illuminant D65 (approximately 6504 Kelvin / 153.7 Mireds) is the official white point for the sRGB and Rec.709 color standards.
How is Kelvin converted into RGB?
We utilize Tanner Helland's empirical curve-fitting blackbody algorithm, which calculates Planckian radiator spectral emissions between 1,000K and 40,000K.