It is curious, I've color sampled a lot of images of the shirt and I don't get green. But I think a lot of this issue comes from what people think is green.
For example, Apple (and NeXT before them) provided a wonderful tool for working with colors. When I pick a pure yellow, I'm pretty sure most people would say it is yellow. But if I darken that same color (without any shifting towards green), I think people see that as green.
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I'm sure people will say it is whatever color they think they are seeing, but the samples I've taken almost never pull towards the actual color green. If you are attempting to generate that same color of the shirt, you'll need to stay away from actual green to end up with the green you want.
This was really interesting. I downloaded your screencap and opened it up in Corel Painter (it has a similiar-yet-different color wheel color picker). I was convinced that that darkened yellow (it looks very avocado-ish) would show up in the green family... but nope... its definitely still in the yellow group! Not sure it proves anything just thought I'd mention it.