ΔE 19.5, loose: different enough that you should pick on purpose. Gorgon Brown is much more muted, cooler than Quicksand Brown.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 20). Gorgon Brown is much more muted, cooler than Quicksand Brown.
The same difference applies the other way round: Quicksand Brown is much 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 Quicksand Brown on the colour wheel See Gorgon Brown on the colour wheel
All matches: Quicksand Brown equivalents · Gorgon Brown equivalents