Any feedback on how could I tweak/harmonize the songsling.io color scheme?

These are the colors in the "theme" I'm using now, plus some randomized ones:

purple: 'rgba(41,42,109,1)',
softPurple: 'rgba(41,42,109,0.1)',
backgroundPink: 'rgba(219, 112, 190, 0.65)',
paleVioletRed: 'rgba(219, 112, 147, 1)',
softLime: 'rgba(0,255,0,0.6)',
brightAzureBlue: 'rgba(116, 227, 236, 1)',

Video: https://twitter.com/haywirez/status/1048906492630523904
Site: https://songsling.io

extreme explosion of bright LSD vibe colors, maximum range

the composition, color palette