ΔE 13.2, fair: the same colour family, but not a straight swap. Feral Green is more saturated, cooler than Light Green.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Feral Green is more saturated, cooler than Light Green.
The same difference applies the other way round: Light Green is more muted, 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 Light Green on the colour wheel See Feral Green on the colour wheel
All matches: Light Green equivalents · Feral Green equivalents