ΔE 4.4, very close: most people won’t see a difference side by side. Pale Blue is a little darker, warmer than Frost Blue.
Yes, for most jobs. Very close match (ΔE 4). Pale Blue is a little darker, warmer than Frost Blue.
The same difference applies the other way round: Frost Blue is a little 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.
See Frost Blue on the colour wheel See Pale Blue on the colour wheel
All matches: Frost Blue equivalents · Pale Blue equivalents