ΔE 27.2, loose: different enough that you should pick on purpose. Replenish Blue is noticeably darker, more saturated, warmer than Tidal Wave.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 27). Replenish Blue is noticeably darker, more saturated, warmer than Tidal Wave.
The same difference applies the other way round: Tidal Wave is noticeably lighter, more muted, 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 Tidal Wave on the colour wheel See Replenish Blue on the colour wheel
All matches: Tidal Wave equivalents · Replenish Blue equivalents