Ocean Blue vs Deep Azure

How close are they?

ΔE 11.5, fair: the same colour family, but not a straight swap. Deep Azure is noticeably lighter, more saturated than Ocean Blue.

Can I use Deep Azure instead of Ocean Blue?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Deep Azure is noticeably lighter, more saturated than Ocean Blue.

Can I use Ocean Blue instead of Deep Azure?

The same difference applies the other way round: Ocean Blue is noticeably darker, 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.