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The colour of pink.

  1. Jan 14, 2004 #1
    where is pink in the visible spectrum? it cant be between blue and red cos they're on the opersit ends...

    after red is infer red, and after blue is ultra violet?
  2. jcsd
  3. Jan 14, 2004 #2
    well it must be between red and blue because you see it....
    an technically speaking infrared is before red:smile:

    note: it is not a rule that a colour must have a single frequency. What we see as pink could be a superposition of different lightwaves with different frequencies
    Last edited: Jan 14, 2004
  4. Jan 14, 2004 #3


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    There is also importantly saturation, or the amount of white light (all frequencies) that accompanies the color. Pink is red with a lot of white.
  5. Jan 14, 2004 #4
    so how come pink doesnt have its own frequency, but other colours that are made from mixing other colours, such as yellow do?
  6. Jan 14, 2004 #5


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    Yellow isn't made by mixing other colors together.
  7. Jan 14, 2004 #6


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    Read about it here. Our eyes have 3 color receptors: they are roughly red green and blue, but they overlap. Therefore we cannot tell the difference between a single frequency like yellow which excites both the red and green receptors, and a mixture of red and green in some proportion which results in the same excitation of red and green receptors.
  8. Jan 14, 2004 #7


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    Make a mix of equal parts red, green, and blue light, and you'll see the combination as white. Now add just a bit more red to the mix, and you'll have pink.

    - Warren
  9. Jan 14, 2004 #8
    Pink isn't the only one. Another example is brown and there are many others. Krab's explanation tells why.
  10. Jan 14, 2004 #9
    well that clears that up :)
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