Knowra Green Green Green is a color perceived between yellow and blue, associated with a broad range of visible wavelengths. Its appearance depends on illumination, surrounding colors, and the visual system.
Visible spectrum : The portion of electromagnetic radiation detectable by the human eye. Green occupies a region of this spectrum, though perceived green is not limited to one wavelength.
Color : A perceptual attribute arising from how visual systems respond to light. Green is one category within the broader domain of color perception.
RGB color model : A color model that represents colors through combinations of red, green, and blue light. Green is one of the three primary channels used to encode display colors.
Red : A color perceived near the long-wavelength end of the visible spectrum. Red is green's opponent in a major channel of human color vision.
Cone cell : A retinal photoreceptor specialized for color vision in relatively bright conditions. Green perception depends on the combined responses of three cone classes.
Hue : The attribute of color that distinguishes categories such as red, green, and blue. Green names a hue rather than a brightness or saturation level.
CMYK color model : A subtractive color model using cyan, magenta, yellow, and black inks in printing. Printed green is generally produced by ink combinations rather than a dedicated green primary.
Blue : A color perceived near the short-wavelength end of the visible spectrum. Blue lies on the other side of green in common hue ordering.
Opponent-process theory : A theory that color vision encodes signals through opposing channels, including red–green and blue–yellow. The visual system represents green partly through activity opposed to red.
Wavelength : The spatial period of a wave, used to characterize electromagnetic radiation such as visible light. Wavelength helps describe green spectral light, but does not alone determine perceived color.
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