ΔE 9.7, close: similar, with a visible difference side by side. Thar Brown is more muted, warmer than Krieg Khaki.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Thar Brown is more muted, warmer than Krieg Khaki.
The same difference applies the other way round: Krieg Khaki is more saturated, 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 Krieg Khaki on the colour wheel See Thar Brown on the colour wheel
All matches: Krieg Khaki equivalents · Thar Brown equivalents