Ahriman Blue vs Gray (Grau)

How close are they?

ΔE 12.8, fair: the same colour family, but not a straight swap. Gray (Grau) is much more muted than Ahriman Blue.

Can I use Gray (Grau) instead of Ahriman Blue?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Gray (Grau) is much more muted than Ahriman Blue.

Can I use Ahriman Blue instead of Gray (Grau)?

The same difference applies the other way round: Ahriman Blue is much 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.