ΔE 10.5, fair: the same colour family, but not a straight swap. Thunderhawk Blue is a little darker, more muted, warmer than Ocean Depths.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Thunderhawk Blue is a little darker, more muted, warmer than Ocean Depths.
The same difference applies the other way round: Ocean Depths is a little lighter, more saturated, 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 Thunderhawk Blue on the colour wheel
All matches: Ocean Depths equivalents · Thunderhawk Blue equivalents