Dunkelgrau RAL 7021 vs Mechanicus Standard Grey

How close are they?

ΔE 11.9, fair: the same colour family, but not a straight swap. Mechanicus Standard Grey is a little lighter, more muted than Dunkelgrau RAL 7021.

Can I use Mechanicus Standard Grey instead of Dunkelgrau RAL 7021?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Mechanicus Standard Grey is a little lighter, more muted than Dunkelgrau RAL 7021.

Can I use Dunkelgrau RAL 7021 instead of Mechanicus Standard Grey?

The same difference applies the other way round: Dunkelgrau RAL 7021 is a little darker, 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.