ΔE 6.5, close: similar, with a visible difference side by side. Sky Blue is more muted than Snow Blue.
Usually, if you are not matching paint already on the model. Close match (ΔE 6). Sky Blue is more muted than Snow Blue.
The same difference applies the other way round: Snow Blue is 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 Snow Blue on the colour wheel See Sky Blue on the colour wheel
All matches: Snow Blue equivalents · Sky Blue equivalents