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  2. Impossible color - Wikipedia

    en.wikipedia.org/wiki/Impossible_color

    For red-and-green, some saw an even field of the new color; some saw a regular pattern of just-visible green dots and red dots; some saw islands of one color on a background of the other color. Some of the volunteers for the experiment reported that afterward, they could still imagine the new colors for a period of time.

  3. List of colors by shade - Wikipedia

    en.wikipedia.org/wiki/List_of_colors_by_shade

    Magenta is variously defined as a purplish-red, reddish-purple, or a mauvish–crimson color. On color wheels of the RGB and CMY color models, it is located midway between red and blue, opposite green. Complements of magenta are evoked by light having a spectrum dominated by energy with a wavelength of roughly 500–530 nm.

  4. List of colors (alphabetical) - Wikipedia

    en.wikipedia.org/wiki/List_of_colors_(alphabetical)

    This is an accepted version of this page This is the latest accepted revision, reviewed on 16 February 2025. For other color lists, see Lists of colors. This article relies largely or entirely on a single source. Relevant discussion may be found on the talk page. Please help improve this article by introducing citations to additional sources. Find sources: "List of colors" alphabetical ...

  5. Chromostereopsis - Wikipedia

    en.wikipedia.org/wiki/Chromostereopsis

    Bluered contrast demonstrating depth perception effects 3 Layers of depths "Rivers, Valleys & Mountains". Chromostereopsis is a visual illusion whereby the impression of depth is conveyed in two-dimensional color images, usually of redblue or redgreen colors, but can also be perceived with red–grey or blue–grey images.

  6. Metamerism (color) - Wikipedia

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

    In column 2, metamerism is used to simulate the scene with blue, green and red LEDs, giving a similar response. In colorimetry, metamerism is a perceived matching of colors with different (nonmatching) spectral power distributions. Colors that match this way are called metamers.

  7. Complementary colors - Wikipedia

    en.wikipedia.org/wiki/Complementary_colors

    This model designates red, yellow and blue as primary colors with the primary–secondary complementary pairs of redgreen, blue-orange, and yellow–purple. [2] In this traditional scheme, a complementary color pair contains one primary color (yellow, blue or red) and a secondary color (green, purple or orange).

  8. Tincture (heraldry) - Wikipedia

    en.wikipedia.org/wiki/Tincture_(heraldry)

    The metals and common colours of heraldry. One system of hatching is shown at right. Tinctures are the colours, metals, and furs used in heraldry.Nine tinctures are in common use: two metals, or (gold or yellow) and argent (silver or white); the colours gules (red), azure (blue), vert (green), sable (black), and purpure (purple); and the furs ermine, which represents the winter fur of a stoat ...

  9. Secondary color - Wikipedia

    en.wikipedia.org/wiki/Secondary_color

    Primary colors of the RYB color model: red, yellow, and blue, mixed to form colors orange, green, and purple. Under the modern definition (as even combinations of a primary and a secondary color), tertiary colors are typically named by combining the names of the adjacent primary and secondary color.