The images above come from photos we took at the Cheong Fatt Tze Mansion otherwise known as the Blue Mansion in Penang when R and I stayed there a few years ago (on our first trip to Malaysia). It is truly one of my favorite hotels in the world (not the most comfortable, but the one with a lot character and charm). Anyway, I was thinking all along about painting a room the blue mansion blue, I even contacted them to find out the color awhile back. They let me know it is called indigo but it is the special process that they use with the plaster that gives the color its multi-layer depth. I love this color, but think our room needs to go deeper.
Twilight Tones Article in Ideal Home Magazine (UK)'s February 2011 issue has some ideas on Blue