When I was growing up (only in the 2nd half of the 20th century) my mother once bought me some socks whose colour was advertised in the shop as n*gger brown.
Reading mcmouse's comment reminded me also of an episode of Only Fools and Horses from the early 80s which I saw repeated (again) recently, and there is a line where Del Boy refers to a "black man's pinch": it, too, had been beeped out.
The "n" word is exclusively used between lots of black people, which appears to be quite acceptable, but woe betide any white "honky" who dares utter it to a black person. The "racial abuse" button would be pressed immediately and the "offender" would undoubtedly find themself on the wrong side of the law, a pariah to society, an outcast of the first water, branded as a hater of ethnic minorities.
I am white and I abhor that particular word, but I know of quite a few whites having used it quite liberally, usually in all white circles.