ΔE 11.9, fair: the same colour family, but not a straight swap. Mahogany Brown is a little lighter, more muted, cooler than Chipping.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Mahogany Brown is a little lighter, more muted, cooler than Chipping.
The same difference applies the other way round: Chipping is a little darker, more saturated, 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 Chipping on the colour wheel See Mahogany Brown on the colour wheel
All matches: Chipping equivalents · Mahogany Brown equivalents