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Colors in general

Colors are generally regarded as perceptions produced by the human eye. Colors are, however, properties of the objects we see, and thus independent of our eyesight. According to physics, the information of the color of an object is included in the light reflecting from it to the color sensor. Human eye is also a color sensor.

The color perception is produced when a colorful object is hit by light that reflects to a color sensor. Thus, the perceived color is influenced by the color of the light and the color reflection properties of the object.

Physically, light is electromagnetic radiation. The wavelengths of this radiation look different in terms of color. The colors of all the wavelengths of the light visible to humans can be distinguished in a rainbow. The same colors appear when light traverses a prism. Objects of nature reflect all the colors of a rainbow. The relative proportions of different colors determine the eventual color.