Bastion Grey vs Green Grey

How close are they?

ΔE 13.6, fair: the same colour family, but not a straight swap. Green Grey is noticeably darker, more muted, cooler than Bastion Grey.

Can I use Green Grey instead of Bastion Grey?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Green Grey is noticeably darker, more muted, cooler than Bastion Grey.

Can I use Bastion Grey instead of Green Grey?

The same difference applies the other way round: Bastion Grey is noticeably lighter, 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.