ΔE 11.1, fair: the same colour family, but not a straight swap. Dark Shade is a little lighter, cooler than Strong Skin Shade.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Dark Shade is a little lighter, cooler than Strong Skin Shade.
The same difference applies the other way round: Strong Skin Shade is a little darker, warmer.
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 Strong Skin Shade on the colour wheel See Dark Shade on the colour wheel
All matches: Strong Skin Shade equivalents · Dark Shade equivalents