Memnoch
Lt. Vulture
I remember someone saying that the original tunic is the same color as SS, and while Lucas may have changed the color of it in post SS like all companies base products on the research material given to them and by the standards of the licensor. If Lucas dictated that he wanted it too look exactly as the costume on set and then provided a poncho that was used on set that was blue-ish, then SS is correct.