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It doesn't activate the retina as much as yellow. Orange's complement is blue, which is that much closer to white than was violet. A red color is halfway between white and black. Red's complement is green which is also halfway between white and black. With red and green, the retina's qualitatively divided activity consists of two equal halves.
The notion of "green" in modern European languages corresponds to light wavelengths of about 520–570 nm, but many historical and non-European languages make other choices, e.g. using a term for the range of ca. 450–530 nm ("blue/green") and another for ca. 530–590 nm ("green/yellow").
Berlin and Kay identified eleven possible basic color categories: white, black, red, green, yellow, blue, brown, purple, pink, orange, and gray. To be considered a basic color category, the term for the color in each language had to meet certain criteria: It is monolexemic (for example, red, not red-yellow or yellow-red.)
However, the Nigerian Ibibio language and the Philippine Hanunoo language both identify green instead of yellow. The Ovahimba use four color names: zuzu stands for dark shades of blue, red, green, and purple; vapa is white and some shades of yellow; buru is some shades of green and blue; and dambu is some other shades of green, red, and brown. [10]
Another issue has been the tendency to describe color effects holistically or categorically, for example as a contrast between "yellow" and "blue" conceived as generic colors instead of the three color attributes generally considered by color science: hue, colorfulness and lightness. These confusions are partly historical and arose in ...
The traditional RYB (red–yellow–blue) color wheel, often used for selecting harmonious colors in art The RGB (red–green–blue) color wheel, matching most technological processes, but exhibiting different complementary colors The Munsell color wheel attempts to divide hues into equal perceptual differences.
The study, which involved 1,400 respondents, found that 57 per cent saw the dress as blue and black, 30 per cent saw it as white and gold, 11 per cent saw it as blue and brown, and two per cent reported it as "other". [44] Women and older people disproportionately saw the dress as white and gold.
For example, mixing green light (530 nm) and blue light (460 nm) produces cyan light that is slightly desaturated, because response of the red color receptor would be greater to the green and blue light in the mixture than it would be to a pure cyan light at 485 nm that has the same intensity as the mixture of blue and green.