I'd look at a Tiffany Box Blue (TBB), a turquoise. Maybe focus on one that had a little greener edge than a typical TBB. The darker, rich read in the bedding with the TBB could be fabulous.

I know there isn't any blue in the bedding :).

You only have to "pull" colors from textiles for paint colors if you want to. It's not a set rule and it most certainly is not the "right way" to do it. It's just the text book way to do it -- it's just another option for coloring. No more no less. ;)

Pulling colors or using textiles and inspiration pieces for paint colors isn't a guaranteed route to a successful, interesting, and balanced atmosphere.

It just means the paint color is gonna match something. For some people that's a big deal. For some people having the paint color match something or directly echo an inspiration piece is what defines a "designed" room.

So, no, there's no blue in the bedding. But would TBB with the bedding create an interesting color relationship, is the option well-crafted color design in that it will meet expectations NOW as wells as how the room needs to evolve. That's how I'd frame color option if a blue in order to evaluate it.