ΔE 11.3, fair: the same colour family, but not a straight swap. Succubus Skin is a little lighter, more saturated, cooler than Human Flesh.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Succubus Skin is a little lighter, more saturated, cooler than Human Flesh.
The same difference applies the other way round: Human Flesh is a little 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 Human Flesh on the colour wheel See Succubus Skin on the colour wheel
All matches: Human Flesh equivalents · Succubus Skin equivalents