Dark Green Blue vs Viking Grey

How close are they?

ΔE 11.6, fair: the same colour family, but not a straight swap. Viking Grey is more muted than Dark Green Blue.

Can I use Viking Grey instead of Dark Green Blue?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Viking Grey is more muted than Dark Green Blue.

Can I use Dark Green Blue instead of Viking Grey?

The same difference applies the other way round: Dark Green Blue is 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.