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  1. en.wikipedia.org › wiki › RedRed - Wikipedia

    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. 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.

  2. Apr 12, 2024 · Learn about red, the longest wavelength of light and a colour on the conventional colour wheel. Explore the etymology, pigments, and systems of red, as well as its role in the electromagnetic spectrum.

    • Tanya Kelley
  3. (RED) partners with Apple, Panasonic, Jeep, and more to create (RED) versions of your favorite products. When you shop (RED), you help raise money for global health crises.

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  4. (RED) is a division of The ONE Campaign that partners with iconic brands to raise money and awareness for the Global Fund. The Global Fund supports life-saving programs in over 100 countries to fight HIV/AIDS, tuberculosis, and malaria.

  5. Take a journey with us through history to discover the surprising story of the world’s most powerful color…. 1. Painting the Cave Red. Scientists have found evidence that over 40,000 years ago,...

  6. Learn the various meanings and uses of the word red, from a color to a political term. See synonyms, examples, phrases, and related articles on red.

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  8. In specific color systems. Variations of red. See also. References. Sources. Shades of red. Varieties of the color red may differ in hue, chroma (also called saturation, intensity, or colorfulness) or lightness (or value, tone, or brightness ), or in two or three of these qualities.

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