ΔE 12.2, fair: the same colour family, but not a straight swap. US Sand is more muted, cooler than Driftwood Brown.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). US Sand is more muted, cooler than Driftwood Brown.
The same difference applies the other way round: Driftwood Brown is more saturated, 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 Driftwood Brown on the colour wheel See US Sand on the colour wheel
All matches: Driftwood Brown equivalents · US Sand equivalents