Half and Half
I am seriously intrigued by these pics. I came across the first one just last week and the second maybe a month or two ago. There is no chair-rail separating the colors. I love that fact. It is such a fresh, modern, take on this classical look. The wall is simply half one color, and half another.
I actually had started the bedroom in the old place (shown above,) and decided to give this look a try after initially seeing the picture below.
Now, I know this is not a half, and half wall. But, when I glanced at for the first time, I didn't see the line separating the wall from the ceiling, and in my mind it registered as one tall wall, and two separate colors. It got my creative juices flowing, even after I noticed it was actually a wall and ceiling. I thought...hmmm, that could be cool. Hence, the bedroom wall. Then I found the 2 pics I started this post with, and my creative juices are flowing once again. I like the contrast and interest this application provides. This might be making an appearance in my home again, very soon.
Sources- 1, 2 (?), 3, 4