ΔE 13.7, fair: the same colour family, but not a straight swap. Succubus Skin is a little darker, much more muted than Vivid Flesh.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Succubus Skin is a little darker, much more muted than Vivid Flesh.
The same difference applies the other way round: Vivid Flesh is a little lighter, much 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 Vivid Flesh on the colour wheel See Succubus Skin on the colour wheel
All matches: Vivid Flesh equivalents · Succubus Skin equivalents