ΔE 23.2, loose: different enough that you should pick on purpose. Kiwi Brown is noticeably darker, much more saturated, warmer than Mid Khaki Drill.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 23). Kiwi Brown is noticeably darker, much more saturated, warmer than Mid Khaki Drill.
The same difference applies the other way round: Mid Khaki Drill is noticeably lighter, much more muted, 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 Mid Khaki Drill on the colour wheel See Kiwi Brown on the colour wheel
All matches: Mid Khaki Drill equivalents · Kiwi Brown equivalents