Results of adding different colours of light
Results of subtracting different colours of light
Colour or color is a property of light as seen by people. The British spelling of the word is colour, the word color is used in American English.
The most common colour names are:
"Primary colours" can be mixed to make the other colours. Red, yellow and blue are the three traditional primary colours. The primary 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 not 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. Food colouring is used to colour food, but some foods have natural colourings, like beta carotene.
When something has no colour, it is transparent. An example is air.
A translucent material is not the same as a colourless material because it can still have a colour, like stained glass.
Images for kids
Color effect – Sunlight shining through stained glass onto carpet (Nasir ol Molk Mosque located in Shiraz, Iran)
Colors can appear different depending on their surrounding colors and shapes. The two small squares have exactly the same color, but the right one looks slightly darker.
Continuous optical spectrum rendered into the sRGB color space.
When viewed in full size, this image contains about 16 million pixels, each corresponding to a different color on the full set of RGB colors. The human eye can distinguish about 10 million different colors.