ΔE 5.6, very close: most people won’t see a difference side by side. USAAF Light Gray is a little darker, cooler than Deck Tan.
Yes, for most jobs. Very close match (ΔE 6). USAAF Light Gray is a little darker, cooler than Deck Tan.
The same difference applies the other way round: Deck Tan is a little lighter, 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 Deck Tan on the colour wheel See USAAF Light Gray on the colour wheel
All matches: Deck Tan equivalents · USAAF Light Gray equivalents