ΔE 10.8, fair: the same colour family, but not a straight swap. Silver Grey is a little lighter, more muted than Vampire Fang.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Silver Grey is a little lighter, more muted than Vampire Fang.
The same difference applies the other way round: Vampire Fang is a little darker, 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 Vampire Fang on the colour wheel See Silver Grey on the colour wheel
All matches: Vampire Fang equivalents · Silver Grey equivalents