ΔE 16.8, loose: different enough that you should pick on purpose. Walnut Brown is a little darker, more muted, warmer than Barak-Nar Burgundy.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 17). Walnut Brown is a little darker, more muted, warmer than Barak-Nar Burgundy.
The same difference applies the other way round: Barak-Nar Burgundy is a little lighter, more saturated, 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 Barak-Nar Burgundy on the colour wheel See Walnut Brown on the colour wheel
All matches: Barak-Nar Burgundy equivalents · Walnut Brown equivalents