Russ Grey vs Bluebird Grey

How close are they?

ΔE 15.8, loose: different enough that you should pick on purpose. Bluebird Grey is a little darker, more muted, warmer than Russ Grey.

Can I use Bluebird Grey instead of Russ Grey?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Bluebird Grey is a little darker, more muted, warmer than Russ Grey.

Can I use Russ Grey instead of Bluebird Grey?

The same difference applies the other way round: Russ Grey is a little lighter, more saturated, cooler.

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.