ΔE 7.8, close: similar, with a visible difference side by side. Plague Toad Venom is a little lighter, more muted than Rainforest.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Plague Toad Venom is a little lighter, more muted than Rainforest.
The same difference applies the other way round: Rainforest is a little darker, 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 Rainforest on the colour wheel See Plague Toad Venom on the colour wheel
All matches: Rainforest equivalents · Plague Toad Venom equivalents