ΔE 27.8, loose: different enough that you should pick on purpose. Electric Blue is noticeably darker, much more saturated than White Blue.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 28). Electric Blue is noticeably darker, much more saturated than White Blue.
The same difference applies the other way round: White Blue is noticeably lighter, much 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 White Blue on the colour wheel See Electric Blue on the colour wheel
All matches: White Blue equivalents · Electric Blue equivalents