Necrolith Bone vs Sand Beige

How close are they?

ΔE 6.2, close: similar, with a visible difference side by side. Sand Beige is a little darker, cooler than Necrolith Bone.

Can I use Sand Beige instead of Necrolith Bone?

Usually, if you are not matching paint already on the model. Close match (ΔE 6). Sand Beige is a little darker, cooler than Necrolith Bone.

Can I use Necrolith Bone instead of Sand Beige?

The same difference applies the other way round: Necrolith Bone is a little lighter, 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.