ΔE 9.5, close: similar, with a visible difference side by side. Bloodless Skin is a little lighter, cooler than Morghast Bone.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Bloodless Skin is a little lighter, cooler than Morghast Bone.
The same difference applies the other way round: Morghast 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 Morghast Bone on the colour wheel See Bloodless Skin on the colour wheel
All matches: Morghast Bone equivalents · Bloodless Skin equivalents