Color - Achromatic (Without hue)

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achromatic colors are colors without hue:

Color Value Without Color

They does not come from the visible light spectrum.

They shows:

  • the totale absence of light reflection (black)
  • or the highly reflecting/transmitting characteristic of the object surface of all colors (white).
  • or a mix of (gray)

From Hue to Achromatic Color

To create an achromatic color from a hue color, you mix at equal quantity:

They cancel each other and create a grayscale color.

Example: A greyscale of 4 colors, with the Rgb colorspace:

  • when the channels are equal, the function gives a grayscale color.
  • the higher the percentage, the higher the lightness
<div id="swatches">
    <div style="background-color:rgb(10%,10%,10%)"> </div>
    <div style="background-color:rgb(80%, 80%, 80%)"> </div>
    <div style="background-color:rgb(95%, 95%, 95%)"> </div>

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is a color with the following specificities: achromatic ie has no hue like white and gray ie does not come from the visible light spectrum ie shows the absence of light reflection the darkest...
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A color is: a light wave in a range called the visual spectrum (that our eye see) the absence of light or mixed (achromatic colors (white, black, gray) in computer a data type that denotes a color....
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Chroma is a ratio parameter whereas colorfulness is an absolute property. Chromatic: Having hue Achromatic: Without hue Polychromatic: Having many hues Monochromatic: Having one hue only The...
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gray is a color: at the middle between white (lightest) and black (darkest) on the ligthness scale (grayscale) achromatic (without hue like white and black) without temperature Mixing a color...
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A Hue is a color of the rainbow. They can be highly simplified as being the color name that gives a particular wavelength (thenwithout white, black or gray) It is one of the main properties describing...
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The name of a color is known as the hue.
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Color - Visual Spectrum (Light / Rainbow)

A hue color is a wave length of light that the human can see except for magenta (that is not a color of the visual spectrum) Colour Wavelength (nm) Frequency (1014 Hz) Energy (eV) red (limit) ...
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A color theme / scheme is a combination of colors used in an application design. They are palette but formed from only a couple of colors. The main types of color schemes are: , , . ...

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