In GB1 the belts and the elbow pads (specifically the elbow pad arm wraps) are custom dyed to match, that's the biggest element most people don't bother with. A neutral 30-35% should be about right.
As the film progresses all the costume elements are weathered and the shades start to vary, so there's a lot of leeway here in terms of accuracy.
Shawn Marshall's pack pictures from Sept, 1984 d[…]
Yeah, I mean we could get surprised and it could[…]
It seems Ghostbusters News removed their post...[…]
You sure put a lot of effort in creating the set )[…]