I am going to do a light gray in my basement probably agreeable gray by Sherwin-Williams. I am looking for advice on trim, ceiling color, and shiplap color which will be in my bathroom and probably paired with Silver Strand Sherwin-Williams.

in the upstairs of my house I have extra white which I am considering using but it seems very bright and cool.

I am considering using something like white dove or maybe even Alabaster also. it what about the ceiling and shiplap then?