ΔE 8.6, close: similar, with a visible difference side by side. White Flesh is a little lighter, warmer than Polished Bone.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). White Flesh is a little lighter, warmer than Polished Bone.
The same difference applies the other way round: Polished Bone is a little darker, cooler.
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 Polished Bone on the colour wheel See White Flesh on the colour wheel
All matches: Polished Bone equivalents · White Flesh equivalents