Smoked Blue vs Ocean Gray

How close are they?

ΔE 7.1, close: similar, with a visible difference side by side. Ocean Gray is a little lighter, more muted, cooler than Smoked Blue.

Can I use Ocean Gray instead of Smoked Blue?

Usually, if you are not matching paint already on the model. Close match (ΔE 7). Ocean Gray is a little lighter, more muted, cooler than Smoked Blue.

Can I use Smoked Blue instead of Ocean Gray?

The same difference applies the other way round: Smoked Blue is a little darker, more saturated, warmer.

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.