ΔE 7.2, close: similar, with a visible difference side by side. Olive Grey is a little darker, more muted, cooler than Tainted Garden.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Olive Grey is a little darker, more muted, cooler than Tainted Garden.
The same difference applies the other way round: Tainted Garden is a little lighter, more saturated, warmer.
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 Tainted Garden on the colour wheel See Olive Grey on the colour wheel
All matches: Tainted Garden equivalents · Olive Grey equivalents