ΔE 15.5, loose: different enough that you should pick on purpose. Elfic Blue is a little darker, warmer than Ocean Light.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 15). Elfic Blue is a little darker, warmer than Ocean Light.
The same difference applies the other way round: Ocean Light is a little lighter, cooler.
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 Ocean Light on the colour wheel See Elfic Blue on the colour wheel
All matches: Ocean Light equivalents · Elfic Blue equivalents