ΔE 14.8, fair: the same colour family, but not a straight swap. Hydra Turquoise is noticeably darker, more muted than Dork.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Hydra Turquoise is noticeably darker, more muted than Dork.
The same difference applies the other way round: Dork is noticeably lighter, more saturated.
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