Color relationships

The other day a good friend and collector was telling me about a show he saw at MOMA in New York by an artist who worked on 20 landscapes at a time with one color. He seemed baffled by the complexity of the idea of placing a color so boldly without the rest of the painting figured out. To me, it seems like a completely opposite phenomenon and an excellent exercize. Our whole world of perception is about our reading of color relationships. It makes it that much easier to start from an abstract color field and play with how another color will effect its impact. Yes, the idea might be daunting if one doesn't feel his/her palette. However, an artist overtime comes to undesrtand his inner color wheel and should be able to apply it in either an abstract or representational format.