Red. Well... You got: Red Red lightsabers are used almost exclusively by Sith and users of the dark side of the Force. Sith believe that conflict is the only way to truly test one’s ability and place in the universe, so they never shy away from a fight or seek peaceful solutions when confronted with problems. Wielders of red-bladed lightsabers are guided by their passions, and use dark-sided Force powers almost exclusively.