Mechanicus Standard Grey vs Dark Green BS381C/641

How close are they?

ΔE 5.4, very close: most people won’t see a difference side by side. Dark Green BS381C/641 is a little lighter than Mechanicus Standard Grey.

Can I use Dark Green BS381C/641 instead of Mechanicus Standard Grey?

Yes, for most jobs. Very close match (ΔE 5). Dark Green BS381C/641 is a little lighter than Mechanicus Standard Grey.

Can I use Mechanicus Standard Grey instead of Dark Green BS381C/641?

The same difference applies the other way round: Mechanicus Standard Grey is a little darker.

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.