ΔE 25.1, loose: different enough that you should pick on purpose. Dark Green Blue is a little darker, more muted, cooler than Cloudburst Blue.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 25). Dark Green Blue is a little darker, more muted, cooler than Cloudburst Blue.
The same difference applies the other way round: Cloudburst Blue is a little lighter, more saturated, 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 Cloudburst Blue on the colour wheel See Dark Green Blue on the colour wheel
All matches: Cloudburst Blue equivalents · Dark Green Blue equivalents