They are created by combining different colors of light together. ... They use combinations of red, green and blue light or RGB. Black is created by having none of these colors.
Additive colors are created when you combine different light colors like red, blue and green that are considered primary colors in the color additive theory that analyses how colors are mixed and perceived by the human eye. When these colors are mixed, they create brighter colors. According to this, the answer is that additive colors are created by combining different colors of light.
