ΔE 11.2, fair: the same colour family, but not a straight swap. Vampire Fang is a little lighter, more saturated, warmer than Rakarth Flesh.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Vampire Fang is a little lighter, more saturated, warmer than Rakarth Flesh.
The same difference applies the other way round: Rakarth Flesh is a little darker, more muted, 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 Rakarth Flesh on the colour wheel See Vampire Fang on the colour wheel
All matches: Rakarth Flesh equivalents · Vampire Fang equivalents