ΔE 18.6, loose: different enough that you should pick on purpose. Brown Rose is noticeably lighter, more saturated, warmer than Black Skintone.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 19). Brown Rose is noticeably lighter, more saturated, warmer than Black Skintone.
The same difference applies the other way round: Black Skintone is noticeably 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 Black Skintone on the colour wheel See Brown Rose on the colour wheel
All matches: Black Skintone equivalents · Brown Rose equivalents