Need help picking accent colors for different rooms!

Hi! My boyfriend and I want to start adding pops of color throughout our home and would love some input. We’re thinking about painting a few specific areas:

• the wall at the back of our main living area (indicated with arrow in the 1st pic, closer view of it in 2nd pic),

• our mud room (3rd pic),

• the corner of the living room where we display records (4th pic),

• and our bedroom (5th and 6th pics).

We’re also planning to paint the bathroom, and I already know I want to go with a dark teal in there.

Does anyone have color suggestions for the other spaces that would still feel cohesive throughout the house? Thanks in advance!