ΔE 9.3, close: similar, with a visible difference side by side. Deck Grey is more muted, warmer than Light Khaki Drill.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Deck Grey is more muted, warmer than Light Khaki Drill.
The same difference applies the other way round: Light Khaki Drill is 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 Light Khaki Drill on the colour wheel See Deck Grey on the colour wheel
All matches: Light Khaki Drill equivalents · Deck Grey equivalents