Dark Olive Drab vs Dryad Bark

How close are they?

ΔE 14.6, fair: the same colour family, but not a straight swap. Dryad Bark is a little darker, much more muted than Dark Olive Drab.

Can I use Dryad Bark instead of Dark Olive Drab?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Dryad Bark is a little darker, much more muted than Dark Olive Drab.

Can I use Dark Olive Drab instead of Dryad Bark?

The same difference applies the other way round: Dark Olive Drab is a little lighter, much more saturated.

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.