exterior paint colors

We have a brick townhouse with a plain brick front and stucco in the back. We’re looking to paint the trim in the front and the stucco in the back. Can anyone suggest paint colors for the following external areas:
A brown for the trim outside- something that truly looks like brownstone, which I guess is what is emulated when those areas are painted. We would have to paint the face of the ground floor as there is smooth cement there that has been painted a pretty ugly brown since we bought the house.

For the back, we like the look of an off white, but can’t get a sense of what color would look good. Has anyone painted the back of their house an off white that they like? Thinking of a white that leans towards light grey or ecru. Thanks!