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