In my magic world I have this association with that shade of green with having sand kicked in my face by a mean, bulky guy while I'm at the beach with my girl; and then the mean, bulky guy threatens to bash my face in while encircling my biceps with one hand; and then the mean,bulky guy walks of with my girl; and then I read about Charles Atlas on the back of a comic book.
Black is the most happy, good luck color.
Kindly
Ta-da ≠ QED