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  2. Ostwald color system - Wikipedia

    en.wikipedia.org/wiki/Ostwald_color_system

    All color samples on the same chart have almost the same dominant wavelength. All color samples in the same vertical row have almost the same dominant wavelength and purity, making the only difference the reflectances. [1] Color samples made from clear cellulose acetate sheets with one side coated with an opaque colored lacquer.

  3. List of RLM paint designations - Wikipedia

    en.wikipedia.org/wiki/List_of_RLM_paint_designations

    Following is a list of RLM (Reichsluftfahrt Ministerium) paint designations used by the German Ministry of Aviation from 1933 through 1945. ... RLM - FS Color LIst

  4. List of RAL colours - Wikipedia

    en.wikipedia.org/wiki/List_of_RAL_colours

    Below is a list of RAL Classic colours [1] from the RAL colour standard. Alongside every colour, the corresponding values are given for: hexadecimal triplet for the sRGB colour space, approximating the given RAL colour; sRGB value; Grey value calculated from (0.2126 × red) + (0.7152 × green) + (0.0722 × blue) [11] CIE L*a*b* values

  5. Color chart - Wikipedia

    en.wikipedia.org/wiki/Color_chart

    Color chips or color samples from a plastic pellet manufacturer that enables customers to evaluate the color range as molded objects to see final effects. A color chart or color reference card is a flat, physical object that has many different color samples present. They can be available as a single-page chart, or in the form of swatchbooks or ...

  6. RAL colour standard - Wikipedia

    en.wikipedia.org/wiki/RAL_colour_standard

    At the international furnishing fair imm Cologne, 13-19 January 2020, two new colours were presented in the Classic Collection: RAL 2017 RAL orange and RAL 9012 Cleanroom White. [4] "RAL 840-HR" covered only matte paint, so the 1980s saw the invention of "RAL 841-GL" for glossy surfaces, limited to 193 colours. [5]

  7. Colour Index International - Wikipedia

    en.wikipedia.org/wiki/Colour_Index_International

    Colour Index International (CII) is a reference database jointly maintained by the Society of Dyers and Colourists and the American Association of Textile Chemists and Colorists. [1] It currently contains over 27,000 individual products listed under 13,000 Colour Index Generic Names. [ 2 ]

  8. ISCC–NBS system - Wikipedia

    en.wikipedia.org/wiki/ISCC–NBS_system

    Each of the 267 ISCC–NBS categories is defined by one or more "blocks" within the color solid of the Munsell color system, where each block includes colors falling in a specific interval in hue, value, and chroma, resulting in a shape which "might be called a sector of a right cylindrical annulus (like a piece of pie with the point bitten off ...

  9. Lightfastness - Wikipedia

    en.wikipedia.org/wiki/Lightfastness

    The part of a molecule responsible for its color is called the chromophore. [4] [5] Light encountering a painted surface can either alter or break the chemical bonds of the pigment, causing the colors to bleach or change in a process known as photodegradation. [6] Materials that resist this effect are said to be lightfast.

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