Eldar Flesh vs Light Sand

How close are they?

ΔE 9.9, close: similar, with a visible difference side by side. Light Sand is more saturated, cooler than Eldar Flesh.

Can I use Light Sand instead of Eldar Flesh?

Usually, if you are not matching paint already on the model. Close match (ΔE 10). Light Sand is more saturated, cooler than Eldar Flesh.

Can I use Eldar Flesh instead of Light Sand?

The same difference applies the other way round: Eldar Flesh is 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.