"Invisible" cars

This morning I did not see a blue car coming from my right until after I had already begun to cross the street. It was almost as if the car had not even been there the first time I looked in that direction. Of course, the other driver honked at me, but I got across the street in more than enough time to avoid a collision. This made me remember many years ago when a relative had there car "totaled" (it was blue). They told me blue cars for some reason were the most difficult to pick out on the street.