ΔE 5.8, very close: most people won’t see a difference side by side. Black Skintone is more muted, warmer than Grimoire Purple.
Yes, for most jobs. Very close match (ΔE 6). Black Skintone is more muted, warmer than Grimoire Purple.
The same difference applies the other way round: Grimoire Purple is 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 Grimoire Purple on the colour wheel See Black Skintone on the colour wheel
All matches: Grimoire Purple equivalents · Black Skintone equivalents