ΔE 10.4, fair: the same colour family, but not a straight swap. Deep Sky Blue is a little lighter, more saturated, cooler than JASDF Shallow Ocean Blue.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Deep Sky Blue is a little lighter, more saturated, cooler than JASDF Shallow Ocean Blue.
The same difference applies the other way round: JASDF Shallow Ocean Blue is a little darker, more muted, warmer.
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 JASDF Shallow Ocean Blue on the colour wheel See Deep Sky Blue on the colour wheel
All matches: JASDF Shallow Ocean Blue equivalents · Deep Sky Blue equivalents