I have a blue vinyl siding house with charcoal grey roof and charcoal grey shuttles. I want to change the trim of the windows from white. What color do you think will match best with this?

We are about to stain a plywood beadboard ceiling on our new 14×20 screened porch. The ceiling is vaulted and has painted white beams/coffer so we are looking to get a dramatic look by staining the beadboard with a cedar-like stain with a polished finish. There will be minimal to