Yellow and purple, opposite on the colour wheel. I don't like this combo. At least not in this pure state, way too harsh for my eye.
A few years ago I put together a quilt using this colour scheme, but on a softer level:
I won't dismiss using yellow and purple for now. I don't have much purple in my stash compared to the yellows I have hoarded away. Even my yellow bead box is filled to the brim. I'll continue to explore yellow, but for now I'm happy with using it alone.