Spring Green. You'd think it would be easy to find this color in nature, given that it's now April. However, around my neck of the woods, we had an April Fools' Day snowstorm which dropped a few inches of the white stuff and obliterated any natural green that might be around.
Interestingly, my kids' toys were full of this color, although I had never paid much attention to it prior to this past week. The photo I ultimately selected is a sort of compilation of a young girl's treasures.