Do ceiling & walls the same color. You have to consider wall color, architecture, light, and mood. Here are some basic guidelines for selecting an effective ceiling paint color, and some inspiring image
I absolutely love this set up and storage Family bonus room with slanted ceiling. Custom built ins and daybed create a great place to hang out with the kids and comfortable space for an overnight guest.
Attic Bedroom Closet Design, Pictures, Remodel, Decor and Ideas - page 9 - sublime-decor. I have the perfect wall (with attic behind it) to do this. I've often thought of making an easily accessible closet there.