French Army Desert Sand vs Karak Stone

How close are they?

ΔE 9.1, close: similar, with a visible difference side by side. Karak Stone is a little darker, more saturated, cooler than French Army Desert Sand.

Can I use Karak Stone instead of French Army Desert Sand?

Usually, if you are not matching paint already on the model. Close match (ΔE 9). Karak Stone is a little darker, more saturated, cooler than French Army Desert Sand.

Can I use French Army Desert Sand instead of Karak Stone?

The same difference applies the other way round: French Army Desert Sand is a little lighter, more muted, warmer.

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.