ΔE 7.0, close: similar, with a visible difference side by side. Mid Mustard Khaki is more saturated than Brownish Green.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Mid Mustard Khaki is more saturated than Brownish Green.
The same difference applies the other way round: Brownish Green is 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 Brownish Green on the colour wheel See Mid Mustard Khaki on the colour wheel
All matches: Brownish Green equivalents · Mid Mustard Khaki equivalents