ΔE 13.4, fair: the same colour family, but not a straight swap. Goblin Green is a little darker, warmer than Light Green.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Goblin Green is a little darker, warmer than Light Green.
The same difference applies the other way round: Light Green is a little lighter, cooler.
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 Light Green on the colour wheel See Goblin Green on the colour wheel
All matches: Light Green equivalents · Goblin Green equivalents