ΔE 6.9, close: similar, with a visible difference side by side. Sand Beige is a little lighter, cooler than Charred Bone.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Sand Beige is a little lighter, cooler than Charred Bone.
The same difference applies the other way round: Charred Bone is a little darker, 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.
See Charred Bone on the colour wheel See Sand Beige on the colour wheel
All matches: Charred Bone equivalents · Sand Beige equivalents