what color is safe?

I can't believe that we are to just take as fact that a light car is safer than a dark car. I can understand at night a dark car is more difficult to see if it HAS NO LIGHTS ON, but during the day the worst color is a silver or light grey car. My wife and I both agree that we will never have one. That color gets lost in bright sunlight far too easily.
Favorite Moment: 
Don't drive with your lights off at night!