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  2. Complementary colors - Wikipedia

    en.wikipedia.org/wiki/Complementary_colors

    Complementary colors may also be called "opposite colors". They are so called, because between the two shades, the set of the three primaries, red, blue and yellow is completed. Which pairs of colors are considered complementary depends on the color theory one uses:

  3. Yellow - Wikipedia

    en.wikipedia.org/wiki/Yellow

    Yellow is the color between green and orange on the spectrum of light. ... Newton's own color circle has yellow directly opposite the boundary between indigo and violet.

  4. Shades of yellow - Wikipedia

    en.wikipedia.org/wiki/Shades_of_yellow

    The color box at right shows the most intense yellow representable in 8-bit RGB color model; yellow is a secondary color in an additive RGB space. This color is also called color wheel yellow . It is at precisely 60 degrees on the HSV color wheel , also known as the RGB color wheel ( Image of RGB color wheel: ).

  5. Opponent process - Wikipedia

    en.wikipedia.org/wiki/Opponent_process

    He thought that the colors red, yellow, green, and blue are special in that any other color can be described as a mix of them, and that they exist in opposite pairs. That is, either red or green is perceived and never greenish-red: Even though yellow is a mixture of red and green in the RGB color theory, the eye does not perceive it as such.

  6. Color wheel - Wikipedia

    en.wikipedia.org/wiki/Color_wheel

    For example, one could use yellow, purple, red, and green. Tetrad colors can be found by putting a square or rectangle on the color wheel. An analogous color scheme is made up of colors next to each other on the wheel. For example, red, orange, and yellow are analogous colors. Monochromatic colors are different shades of the same color.

  7. Axanthism - Wikipedia

    en.wikipedia.org/wiki/Axanthism

    The feathers that would be normally green are blue, and the feathers that would be yellow are white. Axanthism is a mutation that interferes with an animal's ability to produce yellow pigment. The mutation affects the amount of xanthophores and carotenoid vesicles , sometimes causing them to be completely absent. [ 1 ]

  8. Analogous colors - Wikipedia

    en.wikipedia.org/wiki/Analogous_colors

    Analogous color scheme. In color theory, analogous colors are groups of colors that are next to each other on the color wheel. Red, orange, and red-orange are examples. The term analogous refers to having analogy, or corresponding to something in particular.

  9. Inverted spectrum - Wikipedia

    en.wikipedia.org/wiki/Inverted_spectrum

    The inverted spectrum is the hypothetical concept, pertaining to the philosophy of color, of two people sharing their color vocabulary and discriminations, although the colors one sees—one's qualia—are systematically different from the colors the other person sees.