Krieg Khaki vs Yellow Sand

How close are they?

ΔE 9.5, close: similar, with a visible difference side by side. Yellow Sand is more saturated, warmer than Krieg Khaki.

Can I use Yellow Sand instead of Krieg Khaki?

Usually, if you are not matching paint already on the model. Close match (ΔE 10). Yellow Sand is more saturated, warmer than Krieg Khaki.

Can I use Krieg Khaki instead of Yellow Sand?

The same difference applies the other way round: Krieg Khaki is more muted, 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.