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