Uniform Grey vs N4 Neutral Gray

How close are they?

ΔE 13.2, fair: the same colour family, but not a straight swap. N4 Neutral Gray is a little darker, more muted than Uniform Grey.

Can I use N4 Neutral Gray instead of Uniform Grey?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). N4 Neutral Gray is a little darker, more muted than Uniform Grey.

Can I use Uniform Grey instead of N4 Neutral Gray?

The same difference applies the other way round: Uniform Grey 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.