In honor of Dr. Seuss' birthday, I wanted to make a Star Wars version of the famous phrase:
"Sith" kind of sounds like "fish", so I've got
One Sith (Vader)
Two Sith (Sidious and Vader)
Red Sith (Darth Maul)
Blue Sith (?)
A "Red Sith" would probably be Darth Maul, but I can't think of a "Blue Sith". Canon is prefered but Legends is OK too.