ΔE 5.7, very close: most people won’t see a difference side by side. Signal Blue is a little lighter, cooler than Night Black.
Yes, for most jobs. Very close match (ΔE 6). Signal Blue is a little lighter, cooler than Night Black.
The same difference applies the other way round: Night Black is a little darker, 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 Night Black on the colour wheel See Signal Blue on the colour wheel
All matches: Night Black equivalents · Signal Blue equivalents