> Aren't these in direct conflict? If you can't resaturate it, that implies it's not desaturated.
Kinda. There's a singularity in the math. The problem is that hue is defined as an angle and saturation is defined as distance from the center, but there's no consistent way to define a direction for the origin. Black and white have the same problem because they're also desaturated.
> And if you buy a forest motif, people will be upset if it's pink. That's just doing a tie-dye wrong, not a rebuke of whether it's a color at all.
I'm not arguing that it's not a color, just that it doesn't belong in all gradients!
Of course it doesn't belong in all gradients. It would only be in gradients that go from near-opposite colors. Or if you mean pure gray it would only be in gradients between exact opposite colors, and there are no good options for such a gradient.
I mention tie-dye because it feels like a quintessential example of a color gradient. I think it's perfectly reasonable to ask for a blue and orange tie-dye shirt and perfectly reasonable to not want grey colors simply because they're on opposite sides. I could see white in between, I could even see black, or I could see purple and red or cyan and yellow. I don't think there's a universally right answer here!
Someone asking for those colors doesn't actually want a gradient with two anchor points. So yes there are many answers but because it's not a quintessential example of a gradient.
> I thought the same until I googled "blue and orange tie-dye." I'll be honest, more white and black than I expected!
Putting white or black in between adds another anchor point.
And looking more around examples of blue and orange tie dye, most aren't really gradients overall, they have big splotches of solid color with small gaps or overlaps in between, and at least half the time the gaps and overlaps don't even have a gradient inside them.
> We may have to agree to disagree that tie-dye isn't a quintessential example of a gradient. Would you argue that rainbows aren't either?
Hmm. How about this. I would say a rainbow is not a gradient between two colors, and the color space discussion is about a gradient between two colors. The exact border of "quintessential" is not something I really want to spend too much time on.
In my mind a gradient is simply a smooth transition between colors with no universally agreed upon definition. The choice of specific curve through colorspace is rather arbitrary. It seems perfectly reasonable to want to include grey and perfectly reasonable to want to avoid it.
Kinda. There's a singularity in the math. The problem is that hue is defined as an angle and saturation is defined as distance from the center, but there's no consistent way to define a direction for the origin. Black and white have the same problem because they're also desaturated.
> And if you buy a forest motif, people will be upset if it's pink. That's just doing a tie-dye wrong, not a rebuke of whether it's a color at all.
I'm not arguing that it's not a color, just that it doesn't belong in all gradients!