Studies of motorcyclists could only correlate bright white helmets (vs dark or graphic covered helmets and the color of any gear) with reduced auto-driver-at-fault collision rates. Were these helmets actually more noticeable, or were riders who chose bright white helmets somehow inherently safer, more situationally aware, sixth-sense riders?

Other safety studies with motorcyclists indicated the color of anything was several orders of magnitude down from running with lights on.