Why are red, green&blue called the additive primary colors?
Televisions, computer monitors and other visual devices need to use additive colors to display all of the other colors in the world. Because red, blue and green provide that service, they are seen as the additive primary colors.FunctionAdditive colors can be combined with each other to create all of the other colors. This can be the combination of two or three of the colors. Variations of magenta, cyan, or yellow can be made from the combinations.Making WhiteWhite can be made by combining the three primary additive colors, red, blue and green in equal amounts. Variations of white can be made by changing the amount of one or more of the additive primary colors.SourcesThe additive primary colors must be used by a light emitting device such as an LED, bulbs or colored bulb colors. The same combination of colors using crayons or markers will not produce the same variety of new colors.HistoryThe color additive theory was initially devised by James Clark Maxwell in the mid 1800’s.