ΔE 11.5, fair: the same colour family, but not a straight swap. Tanned Skin is noticeably darker, more saturated than Command Khaki.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Tanned Skin is noticeably darker, more saturated than Command Khaki.
The same difference applies the other way round: Command Khaki is noticeably lighter, 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 Command Khaki on the colour wheel See Tanned Skin on the colour wheel
All matches: Command Khaki equivalents · Tanned Skin equivalents