What color to paint existing white kitchen cabints with white appliances
well, it also depends upon the flooring and the style of cabinets. If it's a traditional style, and the floors are a beige/brown color or wood, I'd stay away from grey (although that's my favorite neutral). without a picture, and knowing that you'll likely redo the countertops with granite (likely dark or medium color), white is likely best for the cabinets.
On the flipside, if you have charcoal or white flooring, light grey might look nice with a black granite...