New Iraqi Army Sand vs Desert Webbing

How close are they?

ΔE 9.5, close: similar, with a visible difference side by side. Desert Webbing is cooler than New Iraqi Army Sand.

Can I use Desert Webbing instead of New Iraqi Army Sand?

Usually, if you are not matching paint already on the model. Close match (ΔE 9). Desert Webbing is cooler than New Iraqi Army Sand.

Can I use New Iraqi Army Sand instead of Desert Webbing?

The same difference applies the other way round: New Iraqi Army Sand is 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.