ΔE 7.6, close: similar, with a visible difference side by side. Drab Green is a little lighter, more saturated than Australian Camouflage Green.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Drab Green is a little lighter, more saturated than Australian Camouflage Green.
The same difference applies the other way round: Australian Camouflage Green is a little darker, more muted.
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 Australian Camouflage Green on the colour wheel See Drab Green on the colour wheel
All matches: Australian Camouflage Green equivalents · Drab Green equivalents