Sad to say that fashion often wins out over safety which is
why this common sense helmet doesn't come in safety colors.
They wouldn't sell many if they did. I suppose the goal now
is to get helmets on as many cyclist as possible ,get them
used to wearing them.......then worry about offering safety
colors.

I do agree that both white & yellow should be standard colors
but folk's just don't buy yellow. (My helmet is yellow & I
had to look long & hard to find it. )