Color is so fascinating.
I alluded in my earlier post to a friend who was color-blind. At age 45, he recently bought himself a huge, shiny, brand-new HARLEY-DAVIDSON. Its metallic parts were in a rich, saturated, candylike purple-grape color. It looks like something ridden by MALIBU BARBIE or by "Daphne" in SCOOBY-DOO. I kinda wondered why he would've chosen such a color... then it dawned on me:
It's a color he can see.
I love the whole realm of color use in advertising.... They've pretty well figured out which colors the individual sexes prefer: Women love a red which leans towards blue, whereas men prefer a red which leans towards the orange.
Marketing a product to men? make it blue. To women? Make it red.
As Vance Packard described in the 1950's: A test group of housewives were given three cartons of laundry detergent... One printed blue, one printed yellow and one printed orange. Each of the three boxes contained the exact same washing powder.
But the women came back with their testimonials: The powder in the yellow box was too harsh and ruined their clothing; the powder in the blue box was too weak and didn't get out all the stains; but the product in the orange box was "ju-u-ust right!".
Two rooms, two psych test groups: One asked to wait in a blue room, the others in a red room. Both rooms set to a constant temperature of 72degF. People in the blue room began claiming it was too cold in there; people in the red room claimed their room was unpleasantly warm.
When I lived in San Francisco, I used to wear any color of clothing that pleased me. Teal, watermelon, lemon, robin's egg, cantaloupe, shrimp, coral, spring green, lavender, coffee, aubergine, you-name-it!
When I came to Texas, I quickly, by observation, saw that men here feel only a limited palette is truly manly: true blue, white, true red, hunter green, black, maybe brown. Any other color called his masculinity into question.

YOU explain it!
Some Amazonian and African tribes have only one umbrella word to describe the colors "blue"
and "green". For their purposes-- which work just fine--- those cool colors need only one word.
We have often considered yellow to be a primary color..... When in fact we have three types of retinal cone cells which pick up three colors:
red, green and blue. Perfect for cavemen who needed to be aware of Green (vegetation), Blue (sky and water) and red (blood and meat). What more could we Cro-Magnons need??