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  2. ChromaFlair - Wikipedia

    en.wikipedia.org/wiki/ChromaFlair

    The aluminium and chrome give the paint a vibrant metallic sparkle, while the glass-like coating acts like a refracting prism, changing the apparent color of the surface as the observer moves. [ 3 ] ChromaFlair paints contain no conventional absorbing pigments ; rather, the pigment is a light interference pigment .

  3. Abney effect - Wikipedia

    en.wikipedia.org/wiki/Abney_effect

    However, the Abney effect describes the change in colorimetric purity by the addition of white light. In order to determine the effect that changing the purity has on the perceived hue, it is important that purity be the only variable in the experiment; luminance must be kept constant.

  4. Chromatic adaptation - Wikipedia

    en.wikipedia.org/wiki/Chromatic_adaptation

    Chromatic adaptation is the human visual system’s ability to adjust to changes in illumination in order to preserve the appearance of object colors. It is responsible for the stable appearance of object colors despite the wide variation of light which might be reflected from an object and observed by our eyes.

  5. Chromaticity - Wikipedia

    en.wikipedia.org/wiki/Chromaticity

    Chromaticity is an objective specification of the quality of a color regardless of its luminance. Chromaticity consists of two independent parameters, often specified as hue (h) and colorfulness (s), where the latter is alternatively called saturation, chroma, intensity, [1] or excitation purity.

  6. Color theory - Wikipedia

    en.wikipedia.org/wiki/Color_theory

    Color theory, or more specifically traditional color theory, is the historical body of knowledge describing the behavior of colors, namely in color mixing, color contrast effects, color harmony, color schemes and color symbolism. [1] Modern color theory is generally referred to as color science.

  7. Chromatophore - Wikipedia

    en.wikipedia.org/wiki/Chromatophore

    Cephalopods, such as the octopus, have complex chromatophore organs controlled by muscles to achieve this, whereas vertebrates such as chameleons generate a similar effect by cell signalling. Such signals can be hormones or neurotransmitters and may be initiated by changes in mood, temperature, stress or visible changes in the local environment.

  8. Helmholtz–Kohlrausch effect - Wikipedia

    en.wikipedia.org/wiki/Helmholtz–Kohlrausch_effect

    Helmholtz–Kohlrausch effect has been described in mathematical models by Fairchild and Pirrotta 1991, Nayatani 1997, and most recently High, Green, and Nussbamm 2023. Given a color's CIELAB coordinates, these methods produce an adjusted "equivalent achromatic lightness" L* EAL, i.e. the shade of grey humans think is as bright as the color. [5]

  9. Lightness - Wikipedia

    en.wikipedia.org/wiki/Lightness

    where C is the chroma and h the hue angle Q is then calculated from J HK instead of from J. This formula has the effect of pulling up the lightness and brightness of coloured samples. The larger the chroma, the stronger the effect; for very saturated colours C can be close to 100 or even higher.