As of 2014, two black quarterbacks have won the Super Bowl. The first was Doug Williams while playing for Washington in 1988, and the second was Russell Wilson while playing for Seattle in 2014.
Doug Williams began the 1987 season as a backup but took over in the opening game of the season after an injury to starter Jay Schroeder. He would go on to lead Washington to a Super Bowl victory as well as becoming the Super Bowl MVP and setting a number of passing records in the game.
Russell Wilson led the Seattle Seahawks to a Super Bowl victory in the 2013 to 2014 season, the first championship win for the team. Wilson posted a 123.1 passer rating with two touchdowns and no interceptions.
Both Super Bowls saw the Denver Broncos defeated.