Depending on how colorful the decor of your dining room is, it may or may not benefit from the addition of grey dining chairs. If you already have plenty of color on the walls, drapes, or rug, then adding more color could be a mistake. In a case like this, grey chair made of leather add a classy touch without clashing with anything else in the room.
Dining Chairs – Grey:
Dining Chairs – Grey. Pictured: Set of 2 Parson Dining Chairs in Gray Microfiber by Coaster
Another option is to go for cloth upholstery, or no upholstery at all.