This is a color called "triceratops".  I think its a shade of green--color blindness is an issue here.  TR (talk) 00:19, November 11, 2013 (UTC)

It does have a green-grey shade to it suggestive of a lizard (or dinosaur). ML4E (talk) 20:21, November 12, 2013 (UTC)
When I was a little boy I had many, many dinosaurs. The trikes were always blue--occasionally very pale and just a few shades darker than the sky, more often a nearly-black midnight shade, sometimes with a little sea green mixed in. This shade or something like it would often show up on the stegasaurs and various more generic species I couldn't identify if they weren't labelled.
Ah, youth. Wasted on the young, but even so. Turtle Fan (talk) 00:16, November 13, 2013 (UTC)