This app was mentioned in 4 comments, with an average of 2.00 upvotes
Wave Wave (possibly Wave Wave Legacy, depending on when you played it).
Normal version. https://play.google.com/store/apps/details?id=com.noodlecake.wavewavenew&hl=en
Legacy is actually the older version.
Normal version has more of a super-hexagon style color platellete, and even rotation involved. It also have a legacy mode which is more like the legacy version.
Wave Wave is of Noodlecake, so this one is the one I meant.
https://play.google.com/store/apps/details?id=com.noodlecake.wavewavenew