Stratos Blue vs Blue Gray

How close are they?

ΔE 6.2, close: similar, with a visible difference side by side. Blue Gray is more muted than Stratos Blue.

Can I use Blue Gray instead of Stratos Blue?

Usually, if you are not matching paint already on the model. Close match (ΔE 6). Blue Gray is more muted than Stratos Blue.

Can I use Stratos Blue instead of Blue Gray?

The same difference applies the other way round: Stratos Blue is 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.