ΔE 7.6, close: similar, with a visible difference side by side. Dark Rose is a little lighter than Black Skintone.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Dark Rose is a little lighter than Black Skintone.
The same difference applies the other way round: Black Skintone is a little darker.
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 Black Skintone on the colour wheel See Dark Rose on the colour wheel
All matches: Black Skintone equivalents · Dark Rose equivalents