First of all, do you want to keep the wood tone on the walls OR go with a light color such as light blue or even white? Nothing brightens up a room and brings in the outdoors as these two colors do. If you go with white paint on the walls, I would suggest you paint the ceiling a neutral light blue to bring in the color of the lake and the sky. Then, you might add a bedspread in a royal blue and white window pane plaid with large white squares inside the royal blue grids and complete the look with sheets and pillow cases in the light blue of the ceiling and royal blue or navy blankets. Red or yellow in small accessories would make a refreshing accent for the room. A textured area rug in dark brown or dark gray might make a nice backdrop for the blue and white linens.

I was just asking for the same advice yesterday from this group... we also have an orange roof and brick . I went and found jungle Camouflage by Behr and the trim is a creamy white that I do not have the name in front of me. They look really nice against the orange. Someone also suggested bronze windows which we are considering along with our front door. The orange is definitely tricky .

Dusty Miller is not that much different from what you have. Looks like same family, only slightly lighter. You reference blue/grey in other areas. Perhaps consider a new, fresher look, which will actually enhance the dark wood tones. What are your furnishings like? https://jennakateathome.com/best-blue-gray-paint/

I'm a Sherwin-Williams color fan. It took me a good 7 months to sample a variety of tans and beiges for my last house which was a North facing house in Fort Worth. Eventually I chose Softer Tan. I also had travertine flooring and went with it perfectly. I had Dover White for my trim.  This new house which is a south facing home in Raleigh we went with Kilim Beige. I'm loving it because it tends to be a little darker but with the abundant sunlight it feels cozy to me.  The only way you're going to make this choice is to get all your sample colors and test in every room on several different walls and to continue eliminating them until you have maybe five. Then you get sample pots, which are not real paint because they lack some materials, but they're great samples. I then painted canvases, purchased from Michaels, and then placed them in the rooms on various walls to get an idea of what a larger paint concept would look like. Tip that I forgot- mark your canvases. Lol. This is an iterative process and not one made from online color samples. Houses great for people to give you a direction based on their experiences or use of colors in our own homes but after that it's all about testing.