Have you seen the latest Nancy Meyers movie, The Intern, with Anne Hathaway and Robert De Niro. I recently watched the movie and my favorite part was the interior and set design, from a beautiful Brooklyn Brownstone and an amazing office space.
subway tile + open shelves (wood tones warm up grays). dark grout, gray floor tile For kitchen, lighten cabinets to match open shelves tones, add white subway tile w grey grout and keep grey paint on wall. Consider wood tile instead of hardwood floor.