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