Primary Cyan vs Andrea Blue

How close are they?

ΔE 7.2, close: similar, with a visible difference side by side. Andrea Blue is more muted, cooler than Primary Cyan.

Can I use Andrea Blue instead of Primary Cyan?

Usually, if you are not matching paint already on the model. Close match (ΔE 7). Andrea Blue is more muted, cooler than Primary Cyan.

Can I use Primary Cyan instead of Andrea Blue?

The same difference applies the other way round: Primary Cyan is more saturated, 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.