They should have just given mace windu a red and a blue lightsaber and told him "red and blue make purple". lol.

“I am all the Mace Windus!!!”

B u r p l e

@Dark Lord of the Pith "And I... I'm all the Senate!"

It was the seventies cut em some slack 🤪

Luke’s saber looks greenish aboard the Falcon, so this isn’t the only example. In season six of The Clone Wars, Mace Windu’s lightsaber looks pretty bluish in a few shots too.