ΔE 13.3, fair: the same colour family, but not a straight swap. Zombie Flesh is more saturated, cooler than Barren Dune.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Zombie Flesh is more saturated, cooler than Barren Dune.
The same difference applies the other way round: Barren Dune 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 Barren Dune on the colour wheel See Zombie Flesh on the colour wheel
All matches: Barren Dune equivalents · Zombie Flesh equivalents