Maybe this will help.

Kelly green?

I’d go with Kelly green too.

The tin and the cardboard container are two different members of the green family; I prefer the tin’s darker, more forest, hunter or pine green than the package. Kelly is very flamboyant for a dress. Granny Smith apple is a little more subdued.

I’d say “emerald”. Many fabrics are available in jewel tones.

Bear in mind that color varies a lot from computer to computer. When I put the same image up on two screens right next to each other, the colors almost never look the same. For instance, what looks like a real blue-blue on one can look almost turquoise on another.