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In reply to the discussion: Colorized pixs from the past [View all]Nitram
(22,800 posts)perception at the tonal level. I realize my choice of blue and green didn't express that. I'm aware of all you've conveyed in your lecture (which doesn't bother me - I appreciate the effort you put into being clear. It's a matter of degree, of course, but just as you pointed out, color distinctions are cultural, not physiological. Societies star with a very limited range of words for color, and as their sophistication increases, so does their perception of color. Starting with light, dark, and red, then yellow or green/blue; a fifth distinction will provide the alternate of the fourth; a sixth distinction will separate blue and green. Japanese kimono dyers were said to have words for the most subtle distinctions in color, which suggests that words and perception are interrelated. If we have a word for a color, we are more likely to learn to distinguish that color from others.
But back to "saturation", I believe different people perceive saturation differently. Some people are very sensitive to increased saturation, others not so much.