ΔE 16.3, loose: different enough that you should pick on purpose. Coal Black is noticeably darker, more saturated, cooler than Bramble Grove.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Coal Black is noticeably darker, more saturated, cooler than Bramble Grove.
The same difference applies the other way round: Bramble Grove is noticeably lighter, more muted, warmer.
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 Bramble Grove on the colour wheel See Coal Black on the colour wheel
All matches: Bramble Grove equivalents · Coal Black equivalents