That Damn Orange Wall

I have a love hate relationship with a certain wall in my house.  This wall was meant to be the accent point in our house, a wall to give life and color to a more neutral home.  With the 60/30/10 rule in design, this was going to be the pivotal 10 that brought things together.  Depending on the day, the light, or my hormones, my feelings change for this wall.  Currently I loathe it and my husband loves it.  He does loathe my ping pong effect of my feelings for this wall which is enough to get him on board with changing it.  Yes, 9 months here and I've painted and repainted more than most of my friends who have lived in their homes for 3+ years.

We have either orange or copper accents throughout the house which is why we chose this color.  I love the color orange but I can't get this particular wall to flow with the rest of the house which therefore makes me want to change it all together.  Unfortunately I have no idea what to change it to. 

Here is the infamous wall from the main view of the house.

Here are some other angles upstairs

And views of the rest of the downstairs living room/kitchen

The grey/blue, Sherwin William's Morning Fog (SW6255), we chose for upstairs is an in between color of the Lazy Gray (SW6254) in the kitchen and Gibraltar (SW6257) on the fireplace wall.  Same color pallet.  My husband's thought is to continue the Morning Fog on the the orange wall.  One idea I had was to use a similar gray from the couch which is also replicated in the kitchen counter/tiles and paint the entire upstairs this...if I can convince my husband of course.

Another thought I had was to use the color below, Black Swan (SW6279), as another accent but that might make it more conflicting with the fireplace wall.

We will be adding a gallery wall of brightly colored paintings from our travels

View of the sitting room looking into the dining room to the living room.  We used Martha Stewart Fig in the Dining Room. Beau's office to the right (which looks a little more yellow in this image) is SW6380 Humble Gold.

I need your insight as I am at a complete and utter loss over what to do with the upstairs.  We have already repainted the playroom portion from the same orange to Morning Fog, and then carried the Morning Fog to the two hallways as well.  I do love the color  but I'm concerned of adding too much blue.  My husbands concern is that we originally envisioned this brightly colorful house as I wrote about here but am slowly ending up with 18 variations of gray. 

Please post your thoughts below.  I'm looking for suggestions for the orange wall only or the upstairs as a whole.  I want to keep the rest of the rooms the same.  Any ideas on how to make my house flow?