Bleached Bone vs Gray FS36622

How close are they?

ΔE 6.7, close: similar, with a visible difference side by side. Gray FS36622 is more saturated, cooler than Bleached Bone.

Can I use Gray FS36622 instead of Bleached Bone?

Usually, if you are not matching paint already on the model. Close match (ΔE 7). Gray FS36622 is more saturated, cooler than Bleached Bone.

Can I use Bleached Bone instead of Gray FS36622?

The same difference applies the other way round: Bleached Bone is more muted, 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.