ΔE 7.0, close: similar, with a visible difference side by side. Mid Khaki Drill is a little darker, more muted than French Army Desert Sand.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Mid Khaki Drill is a little darker, more muted than French Army Desert Sand.
The same difference applies the other way round: French Army Desert Sand is a little lighter, more saturated.
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 French Army Desert Sand on the colour wheel See Mid Khaki Drill on the colour wheel
All matches: French Army Desert Sand equivalents · Mid Khaki Drill equivalents