Colour is a property of light as seen by people. Most of the world’s spelling of the word is colour, the word color is used in American English.

“Primary colours” are often mixed to form the opposite colours. Red, yellow and blue are the three traditional primary colours. the first colours for television screens and computer monitors are red, green and blue. Printers use magenta, yellow and cyan as their primary colours; they also use black.

People who can’t see colours or have a distorted sense of colour are called colour blind. Most colour blind people are male.

Colours are sometimes added to food. coloring is employed to colour food, but some foods have natural colourings, like beta carotene.

When something has no colour, it’s transparent. An example is air.

A translucent material isn’t an equivalent as a color less material because it can still have a colour, like glass .