Sapphire Gem vs Azure

How close are they?

ΔE 14.1, fair: the same colour family, but not a straight swap. Azure is much more muted, warmer than Sapphire Gem.

Can I use Azure instead of Sapphire Gem?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Azure is much more muted, warmer than Sapphire Gem.

Can I use Sapphire Gem instead of Azure?

The same difference applies the other way round: Sapphire Gem is much more saturated, 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.