I'm not sure how to describe it but I think you'd have to see them in person. Mine is Onyx as well and when I repaint mine, I'm pretty sure I'll stick to that or something along similar lines...but def. not Super Black. Just my opinoin.
Erik 1996 Ford Explorer...8 trannys and counting 1993 Nissan 300ZX Convertible (Stage: V+) 2002 Slicktop Chevy Camaro Z28 (338.4rwhp 356.5rwtq) @ 2100 feet 2003 Suzuki Bandit 600S