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From [here](https://www.scientificminds.com/blog/whatever-happened-to-roy-g-biv-kathy-reeves-115.aspx)

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[–] • 1 pt

pink isn't on a single wavelength, its our eyes/brain combining multiple wavelengths (red and purple) into a perceived color.

The 3 primary colors likely have to do more with the 3 types of cones in our eyes for perceiving color rather than some conspiracy that only works if you arrange the colors on a wheel.

[–] • 0 pt

I need to go find a (probably) very retired teacher and ask her why the hell she taught us wrong....if she is still alive, that was about 40 years ago.

[–] • 1 pt

How our brains interpret color and the physical color based on wavelength are two different things, but both matter.

For example, brown isnt a real color either, brown is dark orange perceived as its own color. There is no bright brown, a light cannot emit brown light, it only exists in our heads.