Aegis Aqua vs Adriatic Blue

How close are they?

ΔE 11.7, fair: the same colour family, but not a straight swap. Adriatic Blue is a little darker, warmer than Aegis Aqua.

Can I use Adriatic Blue instead of Aegis Aqua?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Adriatic Blue is a little darker, warmer than Aegis Aqua.

Can I use Aegis Aqua instead of Adriatic Blue?

The same difference applies the other way round: Aegis Aqua is a little lighter, cooler.

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.