ΔE 6.3, close: similar, with a visible difference side by side. Gray FS16440 is more saturated than Shark White.
Usually, if you are not matching paint already on the model. Close match (ΔE 6). Gray FS16440 is more saturated than Shark White.
The same difference applies the other way round: Shark White is 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 Gray FS16440 on the colour wheel
All matches: Shark White equivalents · Gray FS16440 equivalents