ΔE 12.5, fair: the same colour family, but not a straight swap. Shadow Flesh is noticeably lighter, more saturated, cooler than Darkoath Flesh.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Shadow Flesh is noticeably lighter, more saturated, cooler than Darkoath Flesh.
The same difference applies the other way round: Darkoath Flesh is noticeably darker, 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 Darkoath Flesh on the colour wheel See Shadow Flesh on the colour wheel
All matches: Darkoath Flesh equivalents · Shadow Flesh equivalents