Purple.

I didn't expect that Samuel becomes a Jedi Master eventually.
But hey, why not? He has a very vast and versatile range of roles in his career. Good guys, bad guys, doesn't matter.
Each of the characters has this Jackson's flavor.

in case od Master Windu it was the purple color of Light Saber.
Because why not?

Reference photo:
https://images.app.goo.gl/x2LC7LmDqzjkm8pX9