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  2. Complementary colors - Wikipedia

    en.wikipedia.org/wiki/Complementary_colors

    This model designates red, yellow and blue as primary colors with the primary–secondary complementary pairs of red–green, blue-orange, and yellow–purple. [2] In this traditional scheme, a complementary color pair contains one primary color (yellow, blue or red) and a secondary color (green, purple or orange).

  3. Shades of red - Wikipedia

    en.wikipedia.org/wiki/Shades_of_red

    Red (RGB), RGB red, or electric red [citation needed] (as opposed to pigment red, shown below) is the brightest possible red that can be reproduced on a computer monitor. This color is an approximation of an orangish red spectral color. It is one of the three primary colors of light in the RGB color model, along with green and blue.

  4. List of colors by shade - Wikipedia

    en.wikipedia.org/wiki/List_of_colors_by_shade

    Magenta is variously defined as a purplish-red, reddish-purple, or a mauvish–crimson color. On color wheels of the RGB and CMY color models, it is located midway between red and blue, opposite green. Complements of magenta are evoked by light having a spectrum dominated by energy with a wavelength of roughly 500–530 nm.

  5. Opponent process - Wikipedia

    en.wikipedia.org/wiki/Opponent_process

    He thought that the colors red, yellow, green, and blue are special in that any other color can be described as a mix of them, and that they exist in opposite pairs. That is, either red or green is perceived and never greenish-red: Even though yellow is a mixture of red and green in the RGB color theory, humans do not perceive it as such.

  6. Red - Wikipedia

    en.wikipedia.org/wiki/Red

    Red is the color at the long wavelength end of the visible spectrum of light, next to orange and opposite violet. It has a dominant wavelength of approximately 625–740 nanometres. [1] It is a primary color in the RGB color model and a secondary color (made from magenta and yellow) in the CMYK color model, and is the complementary color of cyan.

  7. Political colour - Wikipedia

    en.wikipedia.org/wiki/Political_colour

    In Spain, red is the official colour of both the Spanish Socialist Workers' Party and the Communist Party of Spain. Because the Socialists are a major party, and in order to avoid a clash of colours, the Communist United Left voluntarily uses dark red as its customary colour.

  8. Red Dye 3 Just Got Banned. These Are the Foods to Avoid If ...

    www.aol.com/red-dye-3-just-got-134800003.html

    Red Dye No. 3 is an artificial food coloring derived from petroleum, commonly added to foods, drinks, supplements and drugs to create an appealing cherry-red or pink hue.

  9. Auburn hair - Wikipedia

    en.wikipedia.org/wiki/Auburn_hair

    Queen Mary I of England was described with either light or dark auburn hair "Auburn" can be used to describe many shades of reddish hair with similar definitions or hues. It is often conflated in popular usage with Titian hair. Whereas Titian hair is a brownish shade of red hair, auburn hair is specifically defined as including the actual color ...