ΔE 10.6, fair: the same colour family, but not a straight swap. Burnt Orange is a little lighter, more saturated, warmer than Ratskin Flesh.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Burnt Orange is a little lighter, more saturated, warmer than Ratskin Flesh.
The same difference applies the other way round: Ratskin Flesh is a little darker, 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 Ratskin Flesh on the colour wheel See Burnt Orange on the colour wheel
All matches: Ratskin Flesh equivalents · Burnt Orange equivalents