Graphene Gray vs Dark Blue RLM24

How close are they?

ΔE 12.3, fair: the same colour family, but not a straight swap. Dark Blue RLM24 is much more saturated than Graphene Gray.

Can I use Dark Blue RLM24 instead of Graphene Gray?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Dark Blue RLM24 is much more saturated than Graphene Gray.

Can I use Graphene Gray instead of Dark Blue RLM24?

The same difference applies the other way round: Graphene Gray is much more muted.

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.