Some may view them as the "same", but jgraz is correct.
Superman= darker blue body w/ red polyps
Aquaman= lighter blue body w/orange polyps
Like I said, some may view them as the same, but for those of us who make their living on color like me (designer & art director), they are as different as the superheroes for which they are named. Just think of their suits ;-)
The aquaman monti is a REALLY fantastic color combination that is also trending (probably even adding to its value) in home, fashion, event planning, etc. New Pantone colors are coming out in similar hues and many of my clients request them even for their annual reports. However, from a color theory and science perspective, both are scientifically correct color hue combinations.. another example of how amazingly intertwined everything is! In fact, I make many of my color samples and combinations from our reef tank :P Gowsh.. I'm such a nerd for reefs and color! Please forgive me if you don't care about color as much as people in advertising and branding (like me) and other color enthusiasts (maybe other ppl on this forum) do.
IMO, while Superman is still pretty neat, Aquaman still rules the water :D