Mauve vs Alpha Blue

How close are they?

ΔE 11.8, fair: the same colour family, but not a straight swap. Alpha Blue is more saturated, cooler than Mauve.

Can I use Alpha Blue instead of Mauve?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Alpha Blue is more saturated, cooler than Mauve.

Can I use Mauve instead of Alpha Blue?

The same difference applies the other way round: Mauve is 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.