ΔE 7.0, close: similar, with a visible difference side by side. Pale Blue is a little darker, more saturated than Shark White.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Pale Blue is a little darker, more saturated than Shark White.
The same difference applies the other way round: Shark White is a little lighter, more muted.
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 Shark White on the colour wheel See Pale Blue on the colour wheel
All matches: Shark White equivalents · Pale Blue equivalents