Why does the colour wheel exist?
Why does purple have a reddish tinge to it?
As opposed to red that does not have a bluish tinge to it.
Since it's on the other side of the spectrum, one would expect that the red photo receptor of the eye is stimulated the least by purple!
Wouldn't this seem to suggest that the red photo receptor is also susceptible to purple?
But I've never read anything like that....