ΔE 4.9, very close: most people won’t see a difference side by side. Steel Blue is a little lighter, warmer than Navy Blue.
Yes, for most jobs. Very close match (ΔE 5). Steel Blue is a little lighter, warmer than Navy Blue.
The same difference applies the other way round: Navy Blue is a little darker, 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 Navy Blue on the colour wheel See Steel Blue on the colour wheel
All matches: Navy Blue equivalents · Steel Blue equivalents