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  2. List of colors by shade - Wikipedia

    en.wikipedia.org/wiki/List_of_colors_by_shade

    White is the lightest color and a balanced additive combination of all the colors of the visible light spectrum, or of a pair of complementary colors, or of three or more colors, such as additive primary colors. It is a neutral or achromatic color (without chroma), like black and gray

  3. 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 ...

  4. Lightfastness - Wikipedia

    en.wikipedia.org/wiki/Lightfastness

    Lightfastness is a property of a colourant such as dye or pigment that describes its resistance to fading when exposed to light. [1] [2] [3] Dyes and pigments are used for example for dyeing of fabrics, plastics or other materials and manufacturing paints or printing inks.

  5. Eigengrau - Wikipedia

    en.wikipedia.org/wiki/Eigengrau

    The flat curves at low light indicate Eigengrau. An example of noise observed in the dark An example of noise observed in the dark #2 Eigengrau ( German for "intrinsic gray"; pronounced [ˈʔaɪ̯gŋ̍ˌgʁaʊ̯] ⓘ ), also called Eigenlicht ( Dutch and German for "intrinsic light"), dark light , or brain gray , is the uniform dark gray ...

  6. Category:Shades of gray - Wikipedia

    en.wikipedia.org/wiki/Category:Shades_of_gray

    Colors resembling gray. This category is for all varieties, not only shades in the technical sense. Pages in category "Shades of gray" The following 33 pages are in ...

  7. Grey - Wikipedia

    en.wikipedia.org/wiki/Grey

    Grey (more frequent in British English) or gray (more frequent in American English) [2] is an intermediate color between black and white. It is a neutral or achromatic color, meaning that it has no chroma. [3] It is the color of a cloud-covered sky, of ash, and of lead. [4]

  8. Theory of Colours - Wikipedia

    en.wikipedia.org/wiki/Theory_of_Colours

    Light spectrum, from Theory of Colours – Goethe observed that colour arises at the edges, and the spectrum occurs where these coloured edges overlap.. Theory of Colours (German: Zur Farbenlehre) is a book by Johann Wolfgang von Goethe about the poet's views on the nature of colours and how they are perceived by humans.

  9. List of RAL colours - Wikipedia

    en.wikipedia.org/wiki/List_of_RAL_colours

    Possible lightness values are 15% through 90% in steps of 5% for monochromatic shades of grey (i.e. C = 0%) and 20% through 90% in steps of 10% and additionally 85% and 93%. Chroma values are also mostly confined to steps of 10% or 5%, but with some exceptions, and the maximum value varies.