ΔE 19.4, loose: different enough that you should pick on purpose. Grizzly Brown is more saturated, cooler than Dark Wood.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 19). Grizzly Brown is more saturated, cooler than Dark Wood.
The same difference applies the other way round: Dark Wood 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 Wood on the colour wheel See Grizzly Brown on the colour wheel
All matches: Dark Wood equivalents · Grizzly Brown equivalents