ΔE 10.0, fair: the same colour family, but not a straight swap. Mocca Skin is a little darker, more muted than Earth.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Mocca Skin is a little darker, more muted than Earth.
The same difference applies the other way round: Earth is a little lighter, 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 Earth on the colour wheel See Mocca Skin on the colour wheel
All matches: Earth equivalents · Mocca Skin equivalents