I doubt Hypercolor was specifically designed for, or inspired by, raves. But Hypercolor was certainly rave-adjacent, at a time (1992-ish) when that was still niche in America, and their marketing leaned into this.
Fruitopia was a few years after Hypercolor (1994) but also, US mass market tapping into rave aesthetic when this would've been foreign to most Americans.
It's tricky because Fruitopia had some hippie-ish language and tropes in their marketing. They even made a Merry Pranksters-inspired bus (see below!). But idk, the visual language here seems pretty clear rave-inspired.
Also Fruitopia had trippy ads scored by Kate Bush and the Cocteau Twins, connection to UK rave stuff here is even more explicit and niche, yes I know that's oversimplifying subcultural and subgeneric distinctions, it's Twitter cut me some slack.