I don't think I would opt for yellow as a wall color. I think it tends to look too serious or too plain colonial when applied on walls, and it could also be too overpowering. But I'm loving the idea of using it as accent color. Because it's such a strong color it could make a big impact when used in beats and pieces throughout the house or maybe as a very bold wallpaper in a hallway, like in one of the images below.
