I was told once that pink was a good choice for fletchings since it's the only color that doesn't naturally appear in the woods. True or not, I'm not sure, but I never had any reason to disbelieve it. I generally use two yellow blazers and one orange, though. Pink never seems to be available when I go to purchase fletchings and I just want the brightest possible. I guess I'm a little hesitant to use white since I hunt with snow on the ground quite a bit.