You know now that I look at them again, 1 maybe better than 3. In either event, consistency is definitely what we want to go for here. The teal color of Luke's saber in Ben's house is a special effects error, just like the white color of his saber on the Falcon. Also, the purple hand is far less noticeable in motion. I'd suggest letting it slide for now; if it ends up being too evident and distracting that can be dealt with later.