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  2. 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.

  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. Red pigments - Wikipedia

    en.wikipedia.org/wiki/Red_pigments

    Red pigments are materials, usually made from minerals, used to create the red colors in painting and other arts. The color of red and other pigments is determined by the way it absorbs certain parts of the spectrum of visible light and reflects the others. The brilliant opaque red of vermillion, for example, results because vermillion reflects ...

  5. Category:Shades of red - Wikipedia

    en.wikipedia.org/wiki/Category:Shades_of_red

    Raspberry (color) Red Ochre. Red wine. Red-violet. Rose (color) Shades of rose. Rosso corsa. Ruby (color) Rufous.

  6. Complementary colors - Wikipedia

    en.wikipedia.org/wiki/Complementary_colors

    In the RGB model, the primary colors are red, green, and blue. The complementary primary–secondary combinations are red – cyan, green – magenta, and blue – yellow. In the RGB color model, the light of two complementary colors, such as red and cyan, combined at full intensity, will make white light, since two complementary colors contain ...

  7. Iron oxide red - Wikipedia

    en.wikipedia.org/wiki/Iron_oxide_red

    This red is a tone of Indian red, made like Indian red with pigment made from iron oxide. The first recorded use of English red as a color name in English was in the 1700s (exact year uncertain). In the Encyclopédie of Denis Diderot in 1765, alternate names for Indian red included "what one also calls, however improperly, English Red."

  8. Color - Wikipedia

    en.wikipedia.org/wiki/Color

    Color. Colored pencils. Color ( American English) or Colour ( British and Commonwealth English) is the visual perception based on the electromagnetic spectrum. Though color is not an inherent property of matter, color perception is related to an object's light absorption, reflection, emission spectra and interference.

  9. Venetian red - Wikipedia

    en.wikipedia.org/wiki/Venetian_red

    Venetian red. Venetian red is a light and warm (somewhat unsaturated) pigment that is a darker shade of red. The composition of Venetian red changed over time. Originally it consisted of natural ferric oxide (Fe 2 O 3, partially hydrated) obtained from the red hematite. Modern versions are frequently made with synthetic red iron oxide produced ...

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