I have photos of cabins and seats from a few different airlines. Many are blue. Some people like the color, others don't.

Here is a short post from May 2017

The real reason airplane interiors are blue

http://www.travelandleisure.com/vide...riors-are-blue


AC has their new color palette and I'm sure the plan is to have all of the new aircraft interior have a similar color scheme. That would obviously also apply to crew uniforms as well.