Isn't it funny how we stress over quilt colour? I bet if you look round your home, it's perfectly 'matched' and you probably wear coordinated clothing, lol.
However when it comes to fabric all that common sense evaporates! I can empathise - years ago I had a small hand painted ceramics business and combined colour without any problem. Then, when I learned to quilt a few years ago, I simply didn't 'trust' myself with colour!
I've now learned to trust my judgement (although I do ask for help from my LQS now and again). I do tend to stick to my favourite colours and very few quilts I make don't have some shade of green in them. I've only once made a blue quilt (for SIL); I don't have any blue in my home and I seldom wear it.
I think the only colour 'rule' that's important is - go with what
you like. Happy quilting
