ΔE 15.1, loose: different enough that you should pick on purpose. Dark Plum is more muted, cooler than Barak-Nar Burgundy.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 15). Dark Plum is more muted, cooler than Barak-Nar Burgundy.
The same difference applies the other way round: Barak-Nar Burgundy is more saturated, 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 Barak-Nar Burgundy on the colour wheel See Dark Plum on the colour wheel
All matches: Barak-Nar Burgundy equivalents · Dark Plum equivalents