I’ve got ocean blue. Two disadvantages worth weighing up:-
Darker colours expand & heat up more, height of the summer, make sure your bird wears shorts, or she'll burn her ass.
Also the pressure drops in the evening and become softer than lighter colours. This maybe because I have smaller diameter and tapered tubes, not sure if the larger diameter suffer from this.
I would probably go for yellow next time, perhaps a light grey strake to avoid black streaks when cleaning. You just have to keep away from other black fenders.