ΔE 19.5, loose: different enough that you should pick on purpose. Dragon Blue is noticeably lighter, cooler than Angel Green.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 19). Dragon Blue is noticeably lighter, cooler than Angel Green.
The same difference applies the other way round: Angel Green is noticeably 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 Angel Green on the colour wheel See Dragon Blue on the colour wheel
All matches: Angel Green equivalents · Dragon Blue equivalents