On July 10, 2021, Colson signed with Pınar Karşıyaka of the Turkish Super League In 42 games he averaged 15.9 points, 7.2 rebounds, and 0.8 blocks per game. In games in the Turkish Super League he was 7th in the league with 16.9 points per game, 7th with 7.0 rebounds per game, 7th with 1.6 steals per game, and 9th with 0.8 blocks per game.
