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  2. Glass coloring and color marking - Wikipedia

    en.wikipedia.org/wiki/Glass_coloring_and_color...

    Beer bottles of different colors. Glass coloring and color marking may be obtained in several ways. by the addition of coloring ions, [1] [2] by precipitation of nanometer-sized colloids (so-called striking glasses [1] such as "gold ruby" [3] or red "selenium ruby"), [2] Ancient Roman enamelled glass, 1st century, Begram Hoard.

  3. List of RAL colours - Wikipedia

    en.wikipedia.org/wiki/List_of_RAL_colours

    Purple red #701F29: 44.16: 105: 27: 35: 353.85° 59.09: 25.88: 23.903: 35.433: 16.085: 0: 74: 67: 59: 4 RAL 3005: Wine red #5E2028: 38.11: 88: 24: 31: 353.44° 57.14: 21.96: 19.699: 30.019: 12.525: 0: 73: 65: 65: 3 RAL 3007: Black red #402225: 38.31: 61: 32: 34: 355.86° 31.18: 18.24: 16.437: 14.617: 5.268: 0: 48: 44: 76: 2 RAL 3009: Oxide red ...

  4. Emergency vehicle lighting - Wikipedia

    en.wikipedia.org/wiki/Emergency_vehicle_lighting

    The color of a vehicle's emergency lights is useful to denote the type of vehicle or situation, but the relationship between color and service varies widely by jurisdiction. By far the most common colors for the core emergency services to use are blue and red, and there are some arguments for using both.

  5. List of Crayola crayon colors - Wikipedia

    en.wikipedia.org/wiki/List_of_Crayola_crayon_colors

    List of Crayola crayon colors. An assortment of crayon boxes produced by Binney & Smith between 1903 and 1920. Since the introduction of Crayola drawing crayons by Binney & Smith in 1903, more than 200 colors have been produced in a wide variety of assortments. The table below represents all of the colors found in regular Crayola assortments ...

  6. Shades of purple - Wikipedia

    en.wikipedia.org/wiki/Shades_of_purple

    Shades of purple. There are numerous variations of the color purple, a sampling of which is shown below. In common English usage, purple is a range of hues of color occurring between red and blue. [1] However, the meaning of the term purple is not well defined. There is confusion about the meaning of the terms purple and violet even among ...

  7. Manganese violet - Wikipedia

    en.wikipedia.org/wiki/Manganese_violet

    Manganese violet is the inorganic compound with the formula NH 4 MnP 2 O 7. [1] As implied by its name and composition, it is a purple, inorganic pigment. [2] Because it is often impure, the pigment's hue is varied. [3] Notable artists who have used the pigment include Claude Monet, who relied on manganese violet in his Rouen Cathedral series ...

  8. Violet (color) - Wikipedia

    en.wikipedia.org/wiki/Violet_(color)

    Violet is the color of light at the short wavelength end of the visible spectrum. It is one of the seven colors that Isaac Newton labeled when dividing the spectrum of visible light in 1672. Violet light has a wavelength between approximately 380 and 435 nanometers. [2] The color's name is derived from the Viola genus of flowers.

  9. Tint, shade and tone - Wikipedia

    en.wikipedia.org/wiki/Tint,_shade_and_tone

    Tint, shade and tone. In color theory, a tint is a mixture of a color with white, which increases lightness, while a shade is a mixture with black, which increases darkness. Both processes affect the resulting color mixture's relative saturation. A tone is produced either by mixing a color with gray, or by both tinting and shading. [1]

  10. Munsell color system - Wikipedia

    en.wikipedia.org/wiki/Munsell_color_system

    Munsell color system. The Munsell color system, showing: a circle of hues at value 5 chroma 6; the neutral values from 0 to 10; and the chromas of purple-blue (5PB) at value 5. In colorimetry, the Munsell color system is a color space that specifies colors based on three properties of color: hue (basic color), value ( lightness ), and chroma ...

  11. Purple - Wikipedia

    en.wikipedia.org/wiki/Purple

    Purple is a color similar in appearance to violet light. In the RYB color model historically used in the arts, purple is a secondary color created by combining red and blue pigments. In the CMYK color model used in modern printing, purple is made by combining magenta pigment with either cyan pigment, black pigment, or both.