Dark Sand vs Light DAK Sand

How close are they?

ΔE 8.4, close: similar, with a visible difference side by side. Light DAK Sand is more muted, warmer than Dark Sand.

Can I use Light DAK Sand instead of Dark Sand?

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

Can I use Dark Sand instead of Light DAK Sand?

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