Printers use magenta, yellow, and cyan as their primary colours.They also use black. The primary colours for television screens and computer monitors are red, green, and blue. Red, yellow, and blue are the three traditional primary colours. “Primary colours” can be mixed to make the other colours. The international spelling of the word is colour, the word color is used in American English. Colour, or color, is a property of light as seen by people.
