Some blacks are on the brown side of black and others are on the blue side of black...
Black is a funny color in that true black is actually absorbing all the shade of color other than those which are reflected back at you...whereas white is reflecting all the colors of the visible spectrum. They have a competition among paint companies apparently, not officially a competition, to see who can create the blackest black...
Apparently they like to display this handiwork on automobiles. Recall a BMW that sported the blackest paint or surface coating known to man and the reflectivity of the light was how they measured this blackness.
It reflected so little light it would be a huge hazard on the road at night because on dark streets the lack of reflectivity would cause it to be highly likely to be involved in an auto accident where cross traffic would not see or detect this car as easily because our eyes rely on reflectivity far more than we might think abd if only the lighting of the car were seen even in the city, the blackness of the vehicle would rob us of many cues the eye uses to detect things at night, so if the headlamps were not seen then we wouldn't detect the movement if the vehicle as easily as our eyes are tuned to detect movement. Because it's reflectivity is so low our ability to register movement would be impaired. It was an interesting discussion about the visual process, much of which I have forgotten. Oh, almost forgot to mention, it used carbon nanotubes in the paint.
David