ΔE 23.9, loose: different enough that you should pick on purpose. Tooth and Nails is noticeably lighter, more muted, warmer than Krieg Khaki.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 24). Tooth and Nails is noticeably lighter, more muted, warmer than Krieg Khaki.
The same difference applies the other way round: Krieg Khaki is noticeably darker, 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 Tooth and Nails on the colour wheel
All matches: Krieg Khaki equivalents · Tooth and Nails equivalents