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