Chancellor Blue vs Dark Blue RLM24

How close are they?

ΔE 11.3, fair: the same colour family, but not a straight swap. Dark Blue RLM24 is a little lighter, more saturated, cooler than Chancellor Blue.

Can I use Dark Blue RLM24 instead of Chancellor Blue?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Dark Blue RLM24 is a little lighter, more saturated, cooler than Chancellor Blue.

Can I use Chancellor Blue instead of Dark Blue RLM24?

The same difference applies the other way round: Chancellor Blue is a little darker, more muted, warmer.

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.