The office and foyer look to have good natural light while the kitchen does not. If that's true, based on the progression I outlined above, I would put the lightest color in the kitchen, a mid-range shade in the foyer and the darkest color on a color strip card in the office. Use the flooring as your key, and go with blue or yellow undertones, all depending on the warmth or "coolth" of the flooring color. For example, if you have yellow undertones you might try a selection of more pastel olive greens (usually yellow based) or if cool, some sage greens have more blue undertones. Christopher Lowell has an easy method to help you get a good neutral that is not influenced much by blue or yellow, but a true neutral for a good background. Here is his video "7 layers of design." It is covered in step # 1 of his system. The style is a bit dated and the order of the steps can vary from his, but the basic principles still work very well. https://www.youtube.com/watch?v=D4u32tmcE3U

Warning: (learning from just painting Grey in my living room that has loads of windows and light) Most Grey colors turn out much darker looking once you paint them on all the walls. We spent $2,000 to change the grey in our livingroom to a lighter grey because the first one turned out too dark and that was a grey that was much lighter than any you have choosen. I had even gotten a sample and painted one wall to test the color but when the walls all reflect off each other it gets way darker! I would test Beacon Grey or Breath of Fresh Air. We ended up using SW 7071 Grey Screen You can see in this photo how much darker it can get depending on the shadows and lighting. Here it is in the day light: During the day it is almost baby blue but at night it is VERY grey.

I love all 3 of those colors. I painted a wall in my living room Urbane Bronze and I love it. I've also used Sealskin. Urbane Bronze leans more towards charcoal, and the Sealskin is more brown.

IMO you need both ceiling light and task light all LEDs in 4000K then choose wall color. Yes you can do dark but I think you have to decide if you want to work ijn a dark box unless those windows give you lots of natural light at least during the day.Dark walls can be quite nice in small spaces but you need to know if that works for you.