Lure color matters to me. Sometimes, they bite on anything. Sometimes they are picky.
I’ve fished a Gulp Swimming Mullet on the back of an underspin jig for saltwater fish. Speckled trout, Redfish, etc…. They love the stuff. They would be tearing up the white one and suddenly the bite stopped. I’d leave the same jig on, but change the Gulp Mullet to pink, or orange, or chartreuse, etc… and the bite would start up again. When it stopped, I’d change color again. Did color not matter, because it was technically the same lure - just with a different color trailer? Or did the subtle change in color on the same lure get the fish biting again? I think it’s color. They were already interested in the lure, but the color change enticed the bite to start up again. Without the color change - they stopped biting.
But for freshwater fish, I think color comes more into play depending on water clarity. As long as the fish can see it, but it isn’t too much of a contrast, it’s enticing. If they fish can’t see it, they have to rely on the lures vibrations. If they can see it and it’s too much, I think it’s the equivalent of humans smelling hamburgers, and seeing a hamburger truck, but when we get to the truck and the burgers are glowing fluorescent green… we lose interest (and appetite).
All the best,
Glenn