Full Idea
We seem to have a set of colour axes (red-green, blue-yellow, and light-dark). Color naming in different cultures tend to have universal categories based on these axes, with a few derived or composite categories (e.g. orange, purple, pink, brown, grey).
Gist of Idea
Cultures have a common core of colour naming, based on three axes of colour pairs
Source
G Edelman / G Tononi (Consciousness: matter becomes imagination [2000], Ch.13)
Book Reference
Edelman,G/Tononi,G: 'Consciousness: how matter becomes imagination' [Penguin 2000], p.159
A Reaction
This confirms my view of all supposed relativism: that there are degrees of cultural and individual relativism possible, but it is daft to think this goes all the way down, as nature has 'joints', and our minds are part of nature.