ΔE 13.4, fair: the same colour family, but not a straight swap. Beasty Brown is noticeably lighter, more saturated than Quicksand Brown.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Beasty Brown is noticeably lighter, more saturated than Quicksand Brown.
The same difference applies the other way round: Quicksand Brown is noticeably darker, more muted.
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 Quicksand Brown on the colour wheel See Beasty Brown on the colour wheel
All matches: Quicksand Brown equivalents · Beasty Brown equivalents