We have already sampled multiple colors and have even more Samplize samples but haven't found the right color yet.

Is that your house used in the two examples above? Which BM colors are used in the two examples?

@dani_m08 The 1st is an image I found online (maybe AI generated?), and the 2nd is one I rendered in AI using BM Cape May Cobblestone for the siding and trim. Based on the Samplize sample I have, the rendering is not that close to the actual Cape May Cobblestorne.

New one for me; Colorwashing the outside of a home. Is this popular where you live?

Bedford Gray is a Marth Stewart (MS) color from the current Fine Paints of Europe collection. Many pictures on line of her Bedford Gray exterior.

Can you paint your windows?

Unless you have wood on the exterior of your windows I wouldn't want the extra maintenance of painting a factory finished window, which are usually white, tan, bronze/brown and more recently, black.

what is your roof color? I usually start with the BM historic collection

The gap between how a color reads on a chip vs a full wall is mostly about light bouncing off large surfaces. It amplifies undertones. Cape May Cobblestone has a green-gray pull that gets way stronger on big areas, which is probably why the rendering looked off from your Samplize.

For a true warm greige monochromatic look, BM Revere Pewter or Edgecomb Gray hold their warmth better in direct sun. If you want cooler and more stone-like, Fieldstone is worth testing. With monochromatic the color needs to read neutral across morning and afternoon light so ideally sample on two walls facing different directions.

What color is your roof? That usually narrows it fast.