ΔE 13.1, fair: the same colour family, but not a straight swap. Succubus Skin is a little darker, more muted, warmer than Moonpetal.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Succubus Skin is a little darker, more muted, warmer than Moonpetal.
The same difference applies the other way round: Moonpetal is a little lighter, more saturated, 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 Moonpetal on the colour wheel See Succubus Skin on the colour wheel
All matches: Moonpetal equivalents · Succubus Skin equivalents