Their color is definitely highly variable, like a lot of other SAs. Severums, parrot cichlids, chocolate cichlids... there are several cichlids that look different from fish to fish. I've grown out spawns of severums that even show major variations among siblings. Chocolates are pretty common around here so I see them regularly, and they range from a bright olive green to dark burgundy colored, and everything in between. Also, because they frequently change their coloration based on their mood, each fish can go through a variety of color changes. Mine would sometimes be a beautiful emerald green color, but then something would piss her off and she'd turn brown and purple. I guess that's the downside to fish like chocolates -- you see a gorgeous one online and think, "I want one that looks just like that!" and unfortunately that's likely impossible.