what’s the science behind people observing colors differently?

Question

Is it a difference in the amount of rods and cones? Or could it be something else entirely?

In: 2

Answer 1

For color blindness, yes, there’s a difference in the cones. Either they line up to make it harder to differentiate between colors, or one or more cones are just outright faulty or missing.

That said, if we’re just looking at perception of color between healthy individuals, you physically perceive the colors the same way. You might, internally, ‘experience’ it different, but that’s a philosophy discussion more than it’s a science one – the signal is the signal and the wavelength is consistent across people.