Slime Green vs Goblin Green

How close are they?

ΔE 15.8, loose: different enough that you should pick on purpose. Goblin Green is noticeably darker, more muted than Slime Green.

Can I use Goblin Green instead of Slime Green?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Goblin Green is noticeably darker, more muted than Slime Green.

Can I use Slime Green instead of Goblin Green?

The same difference applies the other way round: Slime Green is noticeably lighter, 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.