I have never had anything blue in my house. Maybe only cyan wall in my bedroom but of course it's not the same:) Frosty winter made me think about shades of blue- blue as we know is cold, not cosy, it callms down and makes blood pressure lower (did you know?:)) It's a bit of melancholic but it has one large designing advantage- blue space seems to be wider. It looks great with white, green and grays of course:) I think for now I like its darkest shade best- navy blue, and it should fit perfect to yellow wall!
Have a nice evening!