Blue Gray vs Celestra Grey

How close are they?

ΔE 12.0, fair: the same colour family, but not a straight swap. Celestra Grey is a little lighter, more muted than Blue Gray.

Can I use Celestra Grey instead of Blue Gray?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Celestra Grey is a little lighter, more muted than Blue Gray.

Can I use Blue Gray instead of Celestra Grey?

The same difference applies the other way round: Blue Gray is a little darker, 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.