Okay so GEMINI by Roi, I get purple, blue, and pink from it because those colours appear a lot in the MV, but it can kind of give a yellow and green vibe to me as well
Wozwald by Nilfruits is black, white/grey, and purple because those colours appear in the mv but it can give me red vibes at times
I'm just saying what colours they feel/sound like there's not much reason to it haha

I'm no synesthete, so I'll just say Autobahn is blue because of the album cover.