ΔE 14.9, fair: the same colour family, but not a straight swap. Goblin Green is a little darker, much more muted than Gladeshard.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Goblin Green is a little darker, much more muted than Gladeshard.
The same difference applies the other way round: Gladeshard is a little lighter, much more saturated.
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 Gladeshard on the colour wheel See Goblin Green on the colour wheel
All matches: Gladeshard equivalents · Goblin Green equivalents