ΔE 6.0, very close: most people won’t see a difference side by side. Gray Green is a little darker, more saturated than Longbeard Grey.
Yes, for most jobs. Very close match (ΔE 6). Gray Green is a little darker, more saturated than Longbeard Grey.
The same difference applies the other way round: Longbeard 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 Longbeard Grey on the colour wheel See Gray Green on the colour wheel
All matches: Longbeard Grey equivalents · Gray Green equivalents