ΔE 20.9, loose: different enough that you should pick on purpose. Aquamarine is more saturated, warmer than Ocean Light.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 21). Aquamarine is more saturated, warmer than Ocean Light.
The same difference applies the other way round: Ocean Light is more muted, 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 Aquamarine on the colour wheel
All matches: Ocean Light equivalents · Aquamarine equivalents