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by Retric 974 days ago
The color receptors in your eyes don’t actually correspond with red, blue, and green with the same wavelengths being able to trigger multiple receptors. On top of this your retina absorbs more blue light as you age.

https://en.wikipedia.org/wiki/Cone_cell#/media/File:Cone-fun...

So, defining the separation between Red, Blue, and Green is really fairly arbitrary.