ΔE 9.1, close: similar, with a visible difference side by side. Frostveil is more saturated, warmer than Power Blue.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Frostveil is more saturated, warmer than Power Blue.
The same difference applies the other way round: Power Blue is more muted, 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 Power Blue on the colour wheel See Frostveil on the colour wheel
All matches: Power Blue equivalents · Frostveil equivalents