ΔE 10.5, fair: the same colour family, but not a straight swap. Beige is more saturated, cooler than Washable Sand.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Beige is more saturated, cooler than Washable Sand.
The same difference applies the other way round: Washable Sand is more muted, 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 Washable Sand on the colour wheel See Beige on the colour wheel
All matches: Washable Sand equivalents · Beige equivalents