ΔE 26.1, loose: different enough that you should pick on purpose. Deep Sky Blue is a little darker, cooler than Teal.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 26). Deep Sky Blue is a little darker, cooler than Teal.
The same difference applies the other way round: Teal is a little lighter, 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 Teal on the colour wheel See Deep Sky Blue on the colour wheel
All matches: Teal equivalents · Deep Sky Blue equivalents