Color temperature refers to the color of an ideal black body radiator at that actual temperature[1]. And the hotter a black body radiator gets, the more blue th

Color temperature refers to the color of an ideal black body radiator at that actual temperature[1]. And the hotter a black body radiator gets, the more blue the light output is. ~5800K is the color of sunlight because that is the physical temperature of the surface of the sun. Which happens to unfortunately be the exact opposite of the much older color theory notion of warm (red-ish) and cool (blue-ish) colors. They both use words related to temperature but actually have nothing to do with each other. [1] http://www.techmind.org/colour/coltemp.html http://www.techmind.org/colour/coltemp.html