When you mix all the colored pigments (paints) together, the result is a black pigment.
When you mix light of all colors of the spectrum together, the result is a white light.
Not that it is all that important to the topic of Talyor Swift having a good year.
When you mix all the colored pigments (paints) together, the result is you get brown.
When you make a pie chart of primary colors and spin it, you see white. Isn't this some third grade science project?
That is because the spectrum that uses light from an outside source, such as the sun, is an absorbed light. You use the CMYK scheme to achieve all the colors.
The light from the Sun is emitted light and therefore the entire spectrum, when combined, is white light.
When ALL of the light is reflected from a substance, it is white. When you see a color, it is because all the light with the exception of that wavelength is absorbed.
Say you are looking at something that looks blue to you. That is because all of the white light is absorbed except for the wavelength in the range of 450 to 495 nanometers.
The same with the other colors.
However, that does not directly translate to skin pigmentation. There is no "White" ethnic group. There is the Caucasian ethnic group. IN the past, these individuals were labeled white because compared to the other groups, the looked significantly more pale in color. Hence, 'white'.