ΔE 12.3, fair: the same colour family, but not a straight swap. Orange Oxide is a little darker, more saturated, warmer than Tanned Flesh.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Orange Oxide is a little darker, more saturated, warmer than Tanned Flesh.
The same difference applies the other way round: Tanned Flesh is a little lighter, more muted, cooler.
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 Tanned Flesh on the colour wheel See Orange Oxide on the colour wheel
All matches: Tanned Flesh equivalents · Orange Oxide equivalents