What color to paint middle room?

I like yellow - goes well with other accent colors such as pink, green, some blues, I'd do one wall a Sunny yellow -the other three the lightest tone on the paint swatch -- it will be 'brighter' as it picks up reflected color from the more intense wall

Hello! What a fun project! Personally, I would opt for something bright and sunny like Sunshine Yellow. However, here are some other choices for you -- click on this link to check it out:

https://www.pinterest.com/explore/playroom-paint-colors/?lp=true

a nice pale yellow is great...not to bright or it overwhelms the room.

Make sure to incorporate her favorite colors into the décor you have in her new playroom!

Try a soft yellow.

A soft blue or pale yellow would be nice. You can also use chalkboard paint on a wall and put cork up to make a huge bulletin board for art.

I think a bright white (since there no windows) would be refreshing! White also makes a room look larger.