ΔE 10.2, fair: the same colour family, but not a straight swap. Skeleton Bone is more muted than Vampiric Flesh.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Skeleton Bone is more muted than Vampiric Flesh.
The same difference applies the other way round: Vampiric Flesh is more saturated.
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 Vampiric Flesh on the colour wheel See Skeleton Bone on the colour wheel
All matches: Vampiric Flesh equivalents · Skeleton Bone equivalents