Pink in Visible Spectrum: Infrared to Ultra Violet

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In summary, the conversation discusses the placement of pink in the visible spectrum and how it is created through a mixture of different frequencies of light. It is explained that pink is not a single frequency but a combination of red, green, and blue light. Other colors, such as yellow, are also created through a combination of frequencies. The conversation also touches on the concept of saturation and how it affects our perception of color.
  • #1
Gara
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where is pink in the visible spectrum? it can't be between blue and red cos they're on the opersit ends...

after red is infer red, and after blue is ultra violet?
 
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  • #2
Originally posted by Gara
where is pink in the visible spectrum? it can't be between blue and red cos they're on the opersit ends...

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
 
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  • #3
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.
 
  • #4
so how come pink doesn't have its own frequency, but other colours that are made from mixing other colours, such as yellow do?
 
  • #5
Originally posted by Gara
so how come pink doesn't have its own frequency, but other colours that are made from mixing other colours, such as yellow do?
Yellow isn't made by mixing other colors together.
 
  • #6
Read about it http://www.photo.net/photo/edscott/vis00010.htm . 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.
 
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  • #7
Originally posted by Gara
so how come pink doesn't have its own frequency, but other colours that are made from mixing other colours, such as yellow do?
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
 
  • #8
Originally posted by Gara
so how come pink doesn't have its own frequency, but other colours that are made from mixing other colours, such as yellow do?

Pink isn't the only one. Another example is brown and there are many others. Krab's explanation tells why.
 
  • #9
well that clears that up :)
 

1. What is the visible spectrum?

The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye. It ranges from approximately 400 nanometers (nm) to 700 nm, and includes the colors of the rainbow: red, orange, yellow, green, blue, indigo, and violet.

2. How does pink fit into the visible spectrum?

Pink is a color that falls between red and violet in the visible spectrum. It has a wavelength of approximately 530 nm, making it a shorter wavelength than red and a longer wavelength than violet.

3. Is pink considered a primary color in the visible spectrum?

No, pink is not considered a primary color in the visible spectrum. The primary colors are red, green, and blue, and all other colors can be created by mixing these three colors together. Pink is considered a secondary color, as it is created by mixing red and white together.

4. How does pink appear in the infrared and ultraviolet parts of the spectrum?

In the infrared part of the spectrum, pink is not visible because it has a longer wavelength than the human eye can detect. In the ultraviolet part of the spectrum, pink may appear as a purplish color because it has a shorter wavelength than the human eye can detect.

5. What are some practical applications of pink in the visible spectrum?

Pink has many practical applications, including its use in cosmetics and fashion. It is also used in medicine, as pink is often associated with the color of healthy skin and can be used to identify and diagnose skin conditions. In addition, pink is used in art and design to evoke emotions such as love, warmth, and femininity.

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