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  2. Platinum (color) - Wikipedia

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

    Platinum is a color that is the metallic tint of pale grayish-white resembling the metal platinum. The first recorded use of platinum as a color name in English was in 1918. Platinum in human culture. Awards. A platinum award is not as prestigious as a diamond award, but it is more prestigious than a gold, silver, or bronze award. Credit cards

  3. Platinum - Wikipedia

    en.wikipedia.org/wiki/Platinum

    Platinum is a member of the platinum group of elements and group 10 of the periodic table of elements. It has six naturally occurring isotopes. It is one of the rarer elements in Earth's crust, with an average abundance of approximately 5 μg /kg. It occurs in some nickel and copper ores along with some native deposits, mostly in South Africa ...

  4. List of RAL colours - Wikipedia

    en.wikipedia.org/wiki/List_of_RAL_colours

    RAL 1015. Light ivory. Mandatory for all steel work in P&G / mandatory for taxis in Germany since 1971, although in limited states only in recent years. RAL 1016. Sulfur yellow. Standard European ambulance colour in accordance with CEN 1789. [2] RAL 1017. Saffron yellow.

  5. Shades of gray - Wikipedia

    en.wikipedia.org/wiki/Shades_of_gray

    An achromatic gray is a gray color in which the red, green, and blue codes are exactly equal. The web colors gray, gainsboro, light gray, dark gray, and dim gray are all achromatic colors. A chromatic gray is a gray color in which the red, green, and blue codes are not exactly equal, but are close to each other, which is what makes it a shade ...

  6. Colored gold - Wikipedia

    en.wikipedia.org/wiki/Colored_gold

    Colored gold is the name given to any gold that has been treated using techniques to change its natural color. Pure gold is slightly reddish yellow in color, [1] but colored gold can come in a variety of different colors by alloying it with different elements. Colored golds can be classified in three groups: [2] Alloys with silver and copper in ...

  7. APHA color - Wikipedia

    en.wikipedia.org/wiki/APHA_color

    APHA color, also referred to as the Hazen scale, and more appropriately as the Platinum Cobalt (Pt/Co) scale, [1] is a color standard named for the American Public Health Association and defined by ASTM D1209. [2] It was originally intended to describe the color of waste water, but its usage has expanded to include other industrial applications.

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  9. Color - Wikipedia

    en.wikipedia.org/wiki/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.