Colour Sensor

A colour sensor is a device that detects and measures an object's or surface's colour. Color sensors measure the amount of light reflected or transmitted by an object in various wavelength bands. RGB (red, green, blue) sensors detect the intensity of light in the red, green, and blue areas of the spectrum, whereas CMYK (cyan, magenta, yellow, black) sensors measure the intensity of light in the cyan, magenta, yellow, and black regions of the spectrum.

White light is a mixture of three basic colors known as primary colors. They are red, blue and green. These colors have different wavelengths. Combinations of these colors at different proportions create different types of colors. When the white light falls on any surface, some of the wavelengths of the light are absorbed by the surface while some are reflected back based on the properties of the surface material.

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