What is your favorite color? What color do you find relaxing and calming? What colors do you prefer to wear? Pretty much any color will work with gray. What color are your bed, dresser, etc.?

Please post a pic of the room.

What direction does the window face (north, south, east, west)?

Edit: If you have a north facing room, then this article is helpful when selecting paint colors;

https://www.kylieminteriors.ca/the-best-most-popular-benjamin-moore-paint-colours-north-facing-northern-exposure-rooms/

I second crl’s recommendation for some type of cream color. Are you leaning toward grays because you love the color or because it’s popular right now? I ask because it’s not a color that comes to mind when trying to warm or brighten up a dimly-lit space, especially when it’s cold & dreary outside in the middle of winter. I used BM Bare OC-98 in my bedroom that doesn’t get much sunlight and it’s a warm off-white that works well in there.

I'll say go with bigger stretches of color and wider prints ..... whatever the light hits has got to be ligther. Light reflecting colors - gold yellow/silver. Color of sheets on the brigther side too - peach+ pinks..High contrast will work too - but in bigger blocks rather than smaller bunches that might appear rather cluttery.

Wow! Beautiful view. I would play up that view too:)

https://www.kylieminteriors.ca/the-best-paint-colours-for-west-facing-rooms/

Edit: Consider your lighting plan first, then paint. The room orientation is important but so is the lighting in the room. Once you have the lighting, then choose your paint color.

https://www.houzz.com/magazine/decorating-101-how-to-plan-your-homes-lighting-stsetivw-vs~12803740

A light, tranquil color would be nice. Think of colors found in nature. If you don't want cream, how about something like Quiet Moments (blue/green/gray)? I think you would also need a primer on pine board.

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.