ΔE 13.9, fair: the same colour family, but not a straight swap. Ochre Brown is a little darker, cooler than Tan Flesh.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Ochre Brown is a little darker, cooler than Tan Flesh.
The same difference applies the other way round: Tan Flesh is a little lighter, 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 Tan Flesh on the colour wheel See Ochre Brown on the colour wheel
All matches: Tan Flesh equivalents · Ochre Brown equivalents