Magic Blue vs Celestium Blue

How close are they?

ΔE 14.4, fair: the same colour family, but not a straight swap. Celestium Blue is noticeably darker, warmer than Magic Blue.

Can I use Celestium Blue instead of Magic Blue?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Celestium Blue is noticeably darker, warmer than Magic Blue.

Can I use Magic Blue instead of Celestium Blue?

The same difference applies the other way round: Magic Blue is noticeably 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.