ΔE 11.1, fair: the same colour family, but not a straight swap. Light Gray is a little lighter, more muted than Ocean Depths.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Light Gray is a little lighter, more muted than Ocean Depths.
The same difference applies the other way round: Ocean Depths is a little darker, more saturated.
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 Light Gray on the colour wheel
All matches: Ocean Depths equivalents · Light Gray equivalents