ΔE 13.7, fair: the same colour family, but not a straight swap. Basic Skin Tone is a little darker, more saturated, warmer than Basic Skin.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Basic Skin Tone is a little darker, more saturated, warmer than Basic Skin.
The same difference applies the other way round: Basic Skin is a little 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 Basic Skin on the colour wheel See Basic Skin Tone on the colour wheel
All matches: Basic Skin equivalents · Basic Skin Tone equivalents