ΔE 11.6, fair: the same colour family, but not a straight swap. Ghost Green is a little lighter, more muted, cooler than Light Gray Green.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Ghost Green is a little lighter, more muted, cooler than Light Gray Green.
The same difference applies the other way round: Light Gray Green 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 Light Gray Green on the colour wheel See Ghost Green on the colour wheel
All matches: Light Gray Green equivalents · Ghost Green equivalents