ΔE 11.7, fair: the same colour family, but not a straight swap. Gray FS36320 is a little darker than Celestra Grey.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Gray FS36320 is a little darker than Celestra Grey.
The same difference applies the other way round: Celestra Grey is a little lighter.
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 Celestra Grey on the colour wheel See Gray FS36320 on the colour wheel
All matches: Celestra Grey equivalents · Gray FS36320 equivalents