Light Ghost Gray vs Longbeard Grey

How close are they?

ΔE 12.5, fair: the same colour family, but not a straight swap. Longbeard Grey is a little darker, more muted than Light Ghost Gray.

Can I use Longbeard Grey instead of Light Ghost Gray?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Longbeard Grey is a little darker, more muted than Light Ghost Gray.

Can I use Light Ghost Gray instead of Longbeard Grey?

The same difference applies the other way round: Light Ghost Gray is a little lighter, more saturated.

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.