I'm not sure what the original green would have been, but here's a link to the colors of the original 80/20 loop carpet available through Stock Interiors which sells ACC carpet in many versions for our trucks. You can request free samples from them. They also have samples of the other piles and loop versions. My guess is that you'd want a close match to the door panels and dash pad.
http://www.stockinteriors.com/Carpet...&HideACC=False