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(Summary. I have added the fourth invariant hue, red, as reported in my article "Bezold-Brucke hue shift ... etc", and corrected "R.J.Pridmore" to "R.W.Pridmore" (hopefully throughout).The red invariant has previously been noted but I believe not expe)
 
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{{CogPsy}}
 
{{CogPsy}}
In [[color perception]] '''Invariant hues''' (or '''invariable hues''' <ref>Reber, A.S. & Reber, E.S.(2001) The Penguin Dictionary of Psychology</ref>) are perceived[ [hues]] of monochromatic light that do not change with intensity, that do not show the [[Bezold–Brücke shift]], that is, do not change with changes in [[illumination]].
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In [[color perception]] '''Invariant hues''' (or '''invariable hues''' <ref>Reber, A.S. & Reber, E.S.(2001) The Penguin Dictionary of Psychology</ref>) are perceived [[hues]] of monochromatic light that do not change with intensity, that do not show the [[Bezold–Brücke shift]], that is, do not change with changes in [[illumination]].
   
 
There are four invariant [[hues]]: blue, green, yellow, and red&nbsp
 
There are four invariant [[hues]]: blue, green, yellow, and red&nbsp

Latest revision as of 08:52, July 4, 2012

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In color perception Invariant hues (or invariable hues [1]) are perceived hues of monochromatic light that do not change with intensity, that do not show the Bezold–Brücke shift, that is, do not change with changes in illumination.

There are four invariant hues: blue, green, yellow, and red&nbsp The four invariant hues are:

  • 478nm (blue)
  • 510nm (green) [2][3]
  • 578nm (yellow)
  • 493c (red; i.e. complementary wavelength to 493nm)[4]

ReferencesEdit

  1. Reber, A.S. & Reber, E.S.(2001) The Penguin Dictionary of Psychology
  2. Pridmore, R.W. (1999)."Bezold-Brucke hue-shift as functions of luminance level, luminance ratio ....etc" .Vision Research ;39:3873-3891.
  3. Kuehni,R. (2004) "Variability in unique hue selection: A surprising phenomenon." Color Research & Applic ; 29:158-162
  4. Pridmore, R.W. (1999)."Bezold-Brucke hue-shift as functions of luminance level, luminance ratio ....etc" .Vision Research ;39:3873-3891.

Further readingEdit

Pridmore, R.W (1999). "Unique and binary hues as functions of luminance and illuminant color temperature, and relations with invariant hues." Vision Research ;39:3892-3908.

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