B.M. Palladian Blue.

I chose this inspiration photo because I wanted you to see how well it goes with the brown lamps. It’s a light and bright color for your walls.

Using your furniture, add lots of bright light fabrics not the mix.

Draperies can work for or against you, depending how the colors and how they are hung.

You may find you don’t need any.

No gray in that room, with your furnishings. I absolutely love the Palladian blue color in the photo above. It would look great in your room.

I have a darker room and put up a bunch of samples. I agree that a light bluish color is the way to go, but Palladian blue might be overwhelming in your space without lots of white and natural light. You can get a sample and see. In my darker space, I am looking at Woodlawn blue and Rainwashed, with Rainwashed being much greener in person than I expected but Woodlawn being a bit sophisticated. The picture below is the very brightest this room gets at the height of a sunny day. At night these colors are way more saturated and bluish. The four samplize squares, starting at the bottom and going clockwise, are Rainwashed, Quiet Moments, Woodlawn blue, and Sea Salt. The next picture is a close up in different light, with Woodlawn on the left and Rainwashed on the right (for reference the gray above is Repose Gray and below is Gray Owl on the right and Mindful gray on the left - look how dark in that space!).