ΔE 11.9, fair: the same colour family, but not a straight swap. Marine Blue is a little darker, more muted, warmer than Stratos Blue.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Marine Blue is a little darker, more muted, warmer than Stratos Blue.
The same difference applies the other way round: Stratos Blue 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 Stratos Blue on the colour wheel See Marine Blue on the colour wheel
All matches: Stratos Blue equivalents · Marine Blue equivalents