Clear Blue vs Regal Blue

How close are they?

ΔE 14.7, fair: the same colour family, but not a straight swap. Regal Blue is noticeably lighter, more saturated, cooler than Clear Blue.

Can I use Regal Blue instead of Clear Blue?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Regal Blue is noticeably lighter, more saturated, cooler than Clear Blue.

Can I use Clear Blue instead of Regal Blue?

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