ΔE 6.4, close: similar, with a visible difference side by side. Titanium White is a little lighter than Valhallan Blizzard.
Usually, if you are not matching paint already on the model. Close match (ΔE 6). Titanium White is a little lighter than Valhallan Blizzard.
The same difference applies the other way round: Valhallan Blizzard is a little darker.
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 Valhallan Blizzard on the colour wheel See Titanium White on the colour wheel
All matches: Valhallan Blizzard equivalents · Titanium White equivalents