Stinky-Dinkins said:
In those lightsaber shots the upper shot leans more towards green, especially relative to the lower cap.
I'd wager that the correct color is in between those two. Something like this:
As I said before, I think we've been corrupted by Empire, where it was a more pure shade of blue. All signs point to there being a bit more cyan; not as greenish as the frame on the left, but not *as* blue as the frame on the right.