ΔE 16.2, loose: different enough that you should pick on purpose. Bone White is a little darker, much more muted than Elven Flesh.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Bone White is a little darker, much more muted than Elven Flesh.
The same difference applies the other way round: Elven Flesh is a little lighter, much more saturated.
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 Elven Flesh on the colour wheel See Bone White on the colour wheel
All matches: Elven Flesh equivalents · Bone White equivalents