Yes that sort of mint green was what I was looking for! Also their sleeves seemed like they should be a bit more yellow/green than such a rich blue, extremely tricky to drag out that beige mixed with the more blue/green walls, especially the way I did using the compressed pre-graded frame as base. Those saturated examples really show off the subtleties in tone! Maybe part of what I’m looking for is higher saturation and color separation?
The rebel shirts are definitely blue. The somewhat greenish look on the technicolor prints are due to the slight green cast, that the techs are known for. I’m using multiple print sources as a reference for this color grading: tech, 1997 SE, and Derann. While it is not color accurate, this video of a projected Derann print does give you an idea what I’m going for: