ΔE 11.3, fair: the same colour family, but not a straight swap. Prussian Blue is a little lighter, more muted than Clear Blue.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Prussian Blue is a little lighter, more muted than Clear Blue.
The same difference applies the other way round: Clear Blue is a little darker, more saturated.
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.
See Clear Blue on the colour wheel See Prussian Blue on the colour wheel
All matches: Clear Blue equivalents · Prussian Blue equivalents