ΔE 13.0, fair: the same colour family, but not a straight swap. Kawa Brown is more muted, warmer than Earth.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Kawa Brown is more muted, warmer than Earth.
The same difference applies the other way round: Earth is more saturated, 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 Earth on the colour wheel See Kawa Brown on the colour wheel
All matches: Earth equivalents · Kawa Brown equivalents