ΔE 18.3, loose: different enough that you should pick on purpose. Leaf Green is a little darker, much more muted, cooler than Goblin Green.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 18). Leaf Green is a little darker, much more muted, cooler than Goblin Green.
The same difference applies the other way round: Goblin Green is a little lighter, much more saturated, 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 Goblin Green on the colour wheel See Leaf Green on the colour wheel
All matches: Goblin Green equivalents · Leaf Green equivalents