ΔE 24.9, loose: different enough that you should pick on purpose. Hydra Turquoise is noticeably darker, warmer than Turquoise Interference.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 25). Hydra Turquoise is noticeably darker, warmer than Turquoise Interference.
The same difference applies the other way round: Turquoise Interference is noticeably lighter, 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 Turquoise Interference on the colour wheel See Hydra Turquoise on the colour wheel
All matches: Turquoise Interference equivalents · Hydra Turquoise equivalents