ΔE 18.3, loose: different enough that you should pick on purpose. Dark Blue is noticeably darker, warmer than Azurite Hue.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 18). Dark Blue is noticeably darker, warmer than Azurite Hue.
The same difference applies the other way round: Azurite Hue is noticeably lighter, 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 Azurite Hue on the colour wheel See Dark Blue on the colour wheel
All matches: Azurite Hue equivalents · Dark Blue equivalents