You know, I bought the Dressing the Galaxy (DTG) book at FIDM which has one very very close up pic of Jango's midrif area and hand/arm and I promise his jumpsuit is medium blue linen in that pic. And out of all the photos ever published I would think they'd make an extra effort to make that book's photos to be as accurate as possible in color. Just my opinion.
Plus I have a hard time convincing myself that the most feared and accomplished Bounty Hunter in all the Galaxy would be running around in a "Periwinkle" like colored jumpsuit which would contrast with the blue accents on his helmet, gloves, and jet pack. Plus, Zam's outfit is a purple tone. I like the medium blue seen in the DTG book and am shooting for that color with my custom jumpsuit I'm in the process of sewing. I should have pics up by the end of the weekend.
Cruzer