its a custom mix. I do not have the formula. I recommend you show this image to a colorist at a paint supplier and having them make you up a few samples for your review.

Would this color work well in a room with little natural light? How would you suggest adjusting? I like the brass bed and have a similar one, I like the contrast between the wall color and the bed, but am afraid it won't look great in my basement apartment with no natural light.

Firstly, we are so sorry for having overlooked this question; its an excellent question and is worthy of a response; The room in the photograph does have natural light but its not the brightest room because it is north-facing. So, yes you could put this color into a basement bedroom which has even smaller windows...it comes down to some other factors; while it will make the room feel more cozy, it will trick the eye because a dark color always creates more depth in the corners of the room, so as long as your brass bed and other furnishings are lighter in color to provide contrast, and your flooring is not too dark, this hue of blue could work. Its quite enveloping and can feel quite luxurious when you are nodding off to sleep. We did a blog post on this - check out 'what color to paint my north facing room' on the following blog pageKevin Gray Interiors Color Blog