ΔE 14.0, fair: the same colour family, but not a straight swap. Light Emerald is a little darker, more saturated than Light Grey Green.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Light Emerald is a little darker, more saturated than Light Grey Green.
The same difference applies the other way round: Light Grey Green is a little lighter, more muted.
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 Grey Green on the colour wheel See Light Emerald on the colour wheel
All matches: Light Grey Green equivalents · Light Emerald equivalents