ΔE 14.7, fair: the same colour family, but not a straight swap. Bone White is noticeably darker, more saturated, warmer than Northern Flesh.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Bone White is noticeably darker, more saturated, warmer than Northern Flesh.
The same difference applies the other way round: Northern Flesh is noticeably lighter, more muted, 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 Northern Flesh on the colour wheel See Bone White on the colour wheel
All matches: Northern Flesh equivalents · Bone White equivalents