ΔE 13.5, fair: the same colour family, but not a straight swap. Kawa Brown is noticeably darker, more muted, warmer than Shadow Orange.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Kawa Brown is noticeably darker, more muted, warmer than Shadow Orange.
The same difference applies the other way round: Shadow Orange is noticeably lighter, 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 Shadow Orange on the colour wheel See Kawa Brown on the colour wheel
All matches: Shadow Orange equivalents · Kawa Brown equivalents