ΔE 10.3, fair: the same colour family, but not a straight swap. Flayed One Flesh is a little darker, more muted, warmer than Zombie Skin.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Flayed One Flesh is a little darker, more muted, warmer than Zombie Skin.
The same difference applies the other way round: Zombie Skin is a little lighter, more saturated, 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 Zombie Skin on the colour wheel See Flayed One Flesh on the colour wheel
All matches: Zombie Skin equivalents · Flayed One Flesh equivalents