I'm taking a color theory class and am I ever learning a lot. I can now actually mix colors and know what the result will be (well, sort of). The class is online with Judy Coates Perez and is basic, but just what I need. Judy uses color fearlessly in her work with beautiful results.
I first became fascinated with the magic of color when painting/decorating our first strawbale house. While looking for inspiration, I found the book Color: Natural Palettes for Painted Rooms. What a great resource this turned out to be. I didn't know you could learn this stuff; I had labored under the mistaken idea that you had to born with an eye for it. I then found another great book, Color Magic for Quilters which opened up a whole new world and since that time, I've wanted to take a color theory class. And, now I am.
I may just paint color wheels for the rest of my life and be perfectly happy!
(and, yes you can wear blue with green as they are analogous colors!)