Orange is statistically the safest color on the road. Thus DOTs orange cones and such.
A gray car on a gray road in a gray day disappears easiest. Thus all the gray cars produced.
And for some reason a grey car on a grey road during a grey day won't have it's damn headlights on.
Last year I had to drive in a pretty bad snow storm and you would be amazed at how many white cars didn't even have their lights on.
I wasn't even seeing them till they were less that 50 feet from me doing about 30 on fresh snow.