My dark brown eyed Icelandic/Spanish friend claims "there are no ugly shades of yellow, but there are hardly any nice shades of blue". I think all shades of blue are beautiful, but I have light gray eyes.
There is a theory in Anthropology that suggests that when the original people moved north they needed to see more shades of blue in order to find the white/blue game against the white/blue snow. Because blue eyes were better at this, they survived in what is now Norway and Sweden.
The peoples that moved into the tropics needed to identify subtle shades of yellows and oranges to know which fruits are poisonous, because brown eyes can see more shades of yellow, the brown eyed people survived. (OK so this theory does not apply to the Inuit, who have mostly brown eyes.)
But I was wondering, if you took out all the complexities and emotions of colour, do any of us "see" the same colour when we look at a painting. I started watching people in my studio and sure enough the brown eyed people seemed to be drawn to the predominately yellow paintings and the blue eyes to the mainly blue paintings. But people of Irish decent seem to go to the greens no matter what colour eyes they have.
And dogs? I think they are colour blind, but maybe not...