ΔE 11.5, fair: the same colour family, but not a straight swap. Camo Sand is more saturated, warmer than Washable Dust.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Camo Sand is more saturated, warmer than Washable Dust.
The same difference applies the other way round: Washable Dust is more muted, 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 Washable Dust on the colour wheel See Camo Sand on the colour wheel
All matches: Washable Dust equivalents · Camo Sand equivalents