Sherwin Williams Secure Blue SW6508. I recently used the new Sherwin Williams Emerald line of paint. Low VOC's, fast adherence, mat finish. It's expensive at $60/gallon, but is often on sale for much less. I was really pleased with it. Thanks for your question.

The paint color is great in this room!
Sadly the tile looks washed out in comparison to the crispness of the white & blue.

Please note that a photograph is two dimensional and the space is three dimensional. There is always a loss of impact in a photo as opposed to standing in the room itself. For a 3rd floor bath remodel I felt it hit all the right notes. This little space was challenging, but it remains the most downloaded project in my portfolio - over 6,500 adds to project folders - and is still one of my favorites!