ΔE 11.6, fair: the same colour family, but not a straight swap. Webbing Khaki is a little lighter, cooler than Medium Sand.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Webbing Khaki is a little lighter, cooler than Medium Sand.
The same difference applies the other way round: Medium Sand is a little darker, warmer.
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 Medium Sand on the colour wheel See Webbing Khaki on the colour wheel
All matches: Medium Sand equivalents · Webbing Khaki equivalents