ΔE 12.6, fair: the same colour family, but not a straight swap. Basic Skin Tone is a little lighter, more saturated, warmer than Neutral Flesh.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Basic Skin Tone is a little lighter, more saturated, warmer than Neutral Flesh.
The same difference applies the other way round: Neutral Flesh is a little darker, 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 Neutral Flesh on the colour wheel See Basic Skin Tone on the colour wheel
All matches: Neutral Flesh equivalents · Basic Skin Tone equivalents