Light belongs to the electromagnetic waves. Within their spectrum, the human eye captures visible light in the range between about 380 nm and 700 nm. In addition to brightness and darkness perception the eye captures three different color stimuli: blue, green and red. The color impression is achieved by addition of these three stimuli in the brain. From this it follows that any color can be composed by adding red, green and blue.
 |  Formation of the color impression
Standard observer
Standard illuminants
Standard geometries
Standard color values
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