ΔE 19.0, loose: different enough that you should pick on purpose. Hydra Turquoise is noticeably lighter, much more muted, warmer than Dork.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 19). Hydra Turquoise is noticeably lighter, much more muted, warmer than Dork.
The same difference applies the other way round: Dork is noticeably darker, much more saturated, 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 Dork on the colour wheel See Hydra Turquoise on the colour wheel
All matches: Dork equivalents · Hydra Turquoise equivalents