ΔE 8.4, close: similar, with a visible difference side by side. Skeleton Bone is a little lighter, cooler than Dusty Earth.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Skeleton Bone is a little lighter, cooler than Dusty Earth.
The same difference applies the other way round: Dusty Earth 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 Dusty Earth on the colour wheel See Skeleton Bone on the colour wheel
All matches: Dusty Earth equivalents · Skeleton Bone equivalents