I like black. It basically creates a stripe down the center.
I have a black gripper seat, black tank but I don't have a hood. We also pretty much have the same color scheme. Now if I had to do it again I think I'd go with a white frame and black plastics with red accents. My hybrid build will pop because it's going to be like that. A frame color that is bright and pops.
Back to my $.02, black for all. Definitely have them all the same color if you do so it creates that "stripe".