ΔE 12.0, fair: the same colour family, but not a straight swap. Barak-Nar Burgundy is more saturated, cooler than Dark Brown.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Barak-Nar Burgundy is more saturated, cooler than Dark Brown.
The same difference applies the other way round: Dark Brown is 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 Dark Brown on the colour wheel See Barak-Nar Burgundy on the colour wheel
All matches: Dark Brown equivalents · Barak-Nar Burgundy equivalents