ΔE 6.8, close: similar, with a visible difference side by side. Skeleton Bone is a little darker, cooler than Light Skin Tone.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Skeleton Bone is a little darker, cooler than Light Skin Tone.
The same difference applies the other way round: Light Skin Tone 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.
See Light Skin Tone on the colour wheel See Skeleton Bone on the colour wheel
All matches: Light Skin Tone equivalents · Skeleton Bone equivalents