ΔE 13.0, fair: the same colour family, but not a straight swap. Uniform Grey is cooler than Vampire Flesh.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Uniform Grey is cooler than Vampire Flesh.
The same difference applies the other way round: Vampire Flesh is 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 Vampire Flesh on the colour wheel See Uniform Grey on the colour wheel
All matches: Vampire Flesh equivalents · Uniform Grey equivalents