> Purple objects are "red and blue at the same time," whereas violet objects are . . . just violet. Not on RGB screens. If I take a color picker to the page's

> Purple objects are "red and blue at the same time," whereas violet objects are . . . just violet. Not on RGB screens. If I take a color picker to the page's image of a color spectrum, said to contain pure violet, it is still a mix of red and blue. I admit that it is odd that the left end of the spectrum seems to have color from the right end. It's as if the spectrum wraps around, in our mind's eye at least.