For a single room that can be relatively easy - a rug, a favorite painting, maybe even a favorite dress that makes you feel glamorous. Then I would choose the colors in the rug, painting, or dress and those become the colors in the room. Although the colors don't have to be used in the same way as they are in the item. For instance... if you're like me the dress is actually something a little more casual - like really comfortable pair of dark blue jeans with a flare leg, a fitted shirt with silver monogrammed buttons and a stripe of navy blue and white, and navy blue and yellow earrings. Looking at the colors as a whole, you have white, silver, navy blue, yellow and dark denim blue.
The most color would be the jeans, and in the room the most color would be the walls - but I'm not into dark blue walls. So make the walls white and all the furniture light colored if not all white. Then the metal finishes in the room would be in silver, such as the lighting, fixtures door nobs, door stops, curtain rods etc. The accent colors would be navy blue, yellow, and dark denim blue.
This is all just one room. Now think of twelve rooms, and a team of many trying to make the decisions! Thus the Inspiration Board...
six people looked in magazines separately, and ripped out whatever caught their eyes. There's a lot to look at there, but it's definitely been helpful in our conversations on what the look and feel should be for our new space.