Originally Posted by Stitchawl
We all know that certain colors are considered warm and other cool. Yellows and light oranges are called warm colors while blues are called cold.
Yet, these are actually, in fact, misnomers. Why?
This is related to color temperature. The warmer an object is, the more blue light it emits. The warmer the object is, the colder we consider the light it emits to be.
For the technically interested on the forum:
The light radiation of a socalled black radiator is determined by the temperature of the radiator. The sun behaves as a black radiator and has a temperature of 6300 Kelvin. We say that the sunlight has a color temperature of 6300K. This light is considered warm. A warmer star can emit light with a color temperature of e.g. 8000K. This light will be more blue than the light from our sun, and is considered as "colder" light even though the star emitting the light is in fact warmer than our sun