ΔE 12.3, fair: the same colour family, but not a straight swap. Turquoise is a little darker, warmer than Ocean Depths.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Turquoise is a little darker, warmer than Ocean Depths.
The same difference applies the other way round: Ocean Depths 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 Depths on the colour wheel See Turquoise on the colour wheel
All matches: Ocean Depths equivalents · Turquoise equivalents