I love colors, my mind visualizes colors that I would like to use for a specific project. I don't use a color wheel, I may look at it afterwards. I make my own choices. My first quilt I went overboard on patterns. 2nd one, got the colors I liked, they blended nicely, but, when it came to the backing took me almost 3 mths to decide
Just go with the flow, what you like and in your eyes look good together, and go with it.