Dark Wood vs Sylvaneth Bark

How close are they?

ΔE 6.4, close: similar, with a visible difference side by side. Sylvaneth Bark is a little lighter, warmer than Dark Wood.

Can I use Sylvaneth Bark instead of Dark Wood?

Usually, if you are not matching paint already on the model. Close match (ΔE 6). Sylvaneth Bark is a little lighter, warmer than Dark Wood.

Can I use Dark Wood instead of Sylvaneth Bark?

The same difference applies the other way round: Dark Wood is a little darker, 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.