The higher the color temperature of the camera.

Suppose we are in a dark room, heating a piece of black iron. We can't see anything at -273. 15℃. This temperature, which is what we call absolute 0 degrees, is 0K when converted into Kelvin symbols. With heating, the temperature of iron keeps rising. Above 400℃, that is, 700K, iron will appear dark red. At this time, if you take a piece of white paper and put it under the irradiation of this dark red light, the white paper will turn dark red. Continue to heat, the color of light emitted by iron will gradually turn red, then orange-yellow-white, and finally turn blue at extremely high temperature. According to the color change of the emitted light, the white paper will also change from red to blue-the white paper will completely reflect the color of the light. We know that white is the purest color, and it is also made up of many colors. So the color temperature is the ratio of red to blue in white light expressed by temperature. Therefore, the lower the color temperature, the redder the white; The higher the color temperature, the bluer the white. Although red is a warm color and blue is a cool color, it must be that the red color temperature is low and the blue color temperature is high.

When the set color temperature is lower than the actual color temperature, the color is blue. When the set color temperature is higher than the actual color temperature, the color is red.