There are plenty of kitchen appliances nowadays that are metallic colored. Not every color gamma is good with such appliances. Usually people choose any gamma and try to contrast it with all appliances but in my opinion that isn't the best way. Japanese kitchen producer Tayo Kitchen which have awesome dark kitchen designs under their belt has much better idea. They Porto collection is a great combination of gray, white, black and metallic colored cabinets and furniture that all together perfectly supplement each other. Their showcases are great example of kitchen designs to gather inspiration from.