In photography, the color of light is called

In photography, the color of light is called color temperature.

Color temperature is a unit of measurement, indicating the color components contained in light. Theoretically, blackbody temperature refers to the color of an absolute blackbody heated from absolute zero (-273℃).

After heating, the black body gradually changes from black to red, yellow and white, and finally emits blue light. When heated to a certain temperature, the spectral component of the light emitted by the blackbody is called the color temperature at this temperature, and the unit of measurement is "K"

If the light emitted by a light source contains the same spectral components as the light emitted by a black body at a certain temperature, it is called a certain K color temperature. Color temperature is a measure of temperature, which is usually used in physics and astronomy.