Dark DAK Sand vs Brown (JGSDF)

How close are they?

ΔE 7.6, close: similar, with a visible difference side by side. Brown (JGSDF) is more muted than Dark DAK Sand.

Can I use Brown (JGSDF) instead of Dark DAK Sand?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Brown (JGSDF) is more muted than Dark DAK Sand.

Can I use Dark DAK Sand instead of Brown (JGSDF)?

The same difference applies the other way round: Dark DAK Sand is 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.