Blue Kryptonite ... making it one of the few beneficial variants for Superman. Outside of the classic Kryptonite colors, DC has also introduced various specialized forms of Kryptonite over ...

By saying 'Circ-En-Arrh', Nightwing holds a dialogue with himself, one red and one blue. Not only are these two actual colors he's worn in the past, but they're reminiscent of Superman during his ...