Washable Sand vs Yellow Dune

How close are they?

ΔE 9.1, close: similar, with a visible difference side by side. Yellow Dune is a little darker, more saturated than Washable Sand.

Can I use Yellow Dune instead of Washable Sand?

Usually, if you are not matching paint already on the model. Close match (ΔE 9). Yellow Dune is a little darker, more saturated than Washable Sand.

Can I use Washable Sand instead of Yellow Dune?

The same difference applies the other way round: Washable Sand is a little lighter, more muted.

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.