ΔE 20.1, loose: different enough that you should pick on purpose. Goblin Green is a little darker, cooler than Yellow Green.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 20). Goblin Green is a little darker, cooler than Yellow Green.
The same difference applies the other way round: Yellow Green is a little lighter, warmer.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Yellow Green on the colour wheel See Goblin Green on the colour wheel
All matches: Yellow Green equivalents · Goblin Green equivalents