A tale of two helmets... Kind of.
I custom painted this CairBull Road Helmet. That looks sort of different, depending if it is in direct sunlight or shade. I started with a black helmet, Added sliver graphics, Then sprayed the whole thing will a translucent purple, to give the effect of two different colors of purple in the bright sun, or purple on almost blackout of the direct sunlight.
This is a front view in full sun.