56.4%, according to Statista.
24.9% are White
10.5% are mixed race (which probably takes away from the Black percentage)
Oh yeah, 0.1% are Asian (not Hawaiian or Pacific Islander. Those guys command a 1.5% presence).
So, should the NFL penalize teams because there are 564 times as many Black players as there are Asian players? Why aren't the social justice champions screaming for Asian equality? ;)
Link: https://www.statista.com/statistics/1167935/racial-diversity-nfl-players/