You're talking about subtle disagreements about shade, I think. The green:blue divide is the source of the greatest debate. Reds and browns produce similar arguments.
But this is subjective. There is no specific science pertaining to experience. What's 'loud' for me, for example, may be acceptable to you. And I'm going to have an educated-guess that this same thing happens with colour: it's subjective; and within regions of transformation (blue to green, for example), we are probably inclined to see the colour which we as individuals are emotionally-inclined to see.