ΔE 21.9, loose: different enough that you should pick on purpose. Electric Blue is more saturated, cooler than Etherium Blue.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 22). Electric Blue is more saturated, cooler than Etherium Blue.
The same difference applies the other way round: Etherium Blue is more muted, warmer.
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 Etherium Blue on the colour wheel See Electric Blue on the colour wheel
All matches: Etherium Blue equivalents · Electric Blue equivalents