That’s sort of like setting up a straw man so you can knock it down, yes?
My comment wasn’t meant as anything other than “well, that’s another odd thing about violet-blue”. I wasn’t implying any sort of directionality and I somewhat doubt whether anyone reading this long thread was misled to think otherwise.
The long conversation I’ve been having with @briend about mixing yellow and blue has led to a lot of “color exploration”, a nice opportunity to think about colors and how they interact both in the digital darkroom and when using real pigments. I even bought a somewhat better set of oil pastels just to do some more color exploration. And yes, this stuff does seem odd, unexpected, with violet-blue playing a major role in the “well, isn’t that odd”.
Who gave you the high ground to decide when it’s OK and when it’s not OK to think something is odd?
We have whole books and major sections of the handprint website that talk about the unexpected behavior of paint pigments when mixing green from blue and yellow. This sort of behavior of colors surprises people.
We have other color oddities such as darkening and desaturating bright yellow makes the perceived color go to brown or olive green, depending on the exact hue of yellow we start with. What about the fact that sometimes lightening a black pigment will actually make green. This sort of behavior of colors surprises people at least the first time they encounter it.
We have @briend’s amazing painting of a man wearing blue pants, when there isn’t a speck of blue in the painting, and in fact the entire palette is confined to a range of oranges. This surprises people. It surprised me so much that I used GIMP’s LCh functions to rotate the hues in his painting all the way around the hue ring, and those pants always looked not just “sort of” the complement of the dominant hues, but decidedly the complement of the dominant hue.
Color perception is full of things that surprise people when they first encounter this or that odd thing. Odd. Stuff nobody would think of as “actually the case” until they had a reason to pay attention to whatever “it” might be.
If color perception in general and in specific situations is such a “not odd” thing, how is it that we are still working on models for describing color perception? We don’t even have a really good model for perceptually uniform colors. Oh, and violet-blue is a significant part of the problem.
At least to me, so many things about color and color perception seem odd, unexpected on first encounter. I hope this never changes - color and color perception are wonderful, amazing, awesome parts of how we perceive the world.