An appliance includes a cabinet in which a storage space is defined and a door configured to open and close the storage space. The door includes a door body and a panel assembly mounted on a front surface of the door body. The panel assembly includes a panel which is configured to define a front surface of the door and through which light is transmitted, a lighting device configured to allow the panel to shine with a set color, a back cover configured to define a rear surface of the panel assembly, and a panel holder configured to fix the panel assembly to the door body. The panel holder includes a base fixed inside the panel assembly and a holder protrusion protruding from the base to pass through the back cover and coupled to the door body when the panel assembly is mounted.