ΔE 14.6, fair: the same colour family, but not a straight swap. Park Green Flat is much more muted, cooler than Green.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Park Green Flat is much more muted, cooler than Green.
The same difference applies the other way round: Green is much 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 Green on the colour wheel See Park Green Flat on the colour wheel
All matches: Green equivalents · Park Green Flat equivalents