I can recommend you this color scheme.
Why? Because I designed it myself (/s, but I’m proud of it, okay?).

No, I designed especially for adaptivity. It’s pretty “boring”, but the whole color scheme adapts to your accent color.

On my screenshots, I used a similar set of colors.
It should fit pretty well.

If you just take the pink or blue from the wallpaper via the color picker as custom accent color, it should change your whole mood if the desktop.

I browsed for a while and found this one https://store.kde.org/p/1294174 Are you looking for a light or dark theme?

Original link to the wallpaper?

This would look good with the purple theme from that theme roundup that was posted somewhat recently. I’m still rocking it too and I’m normally an alpha black kind of user.

for for