Provided is an outer plate of a refrigerator. The outer plate of the refrigerator include a steel plate made of a metal material and having an outer surface on which a hairline is processed, a film layer made of a resin material and attached to a surface of the steel plate on which the hairline is provided, and a primer layer allowing the film layer to adhere to the steel plate. The primer layer includes an adhesion promoter for the adhesion between the steel plate and the film layer and a nano pigment for realizing a color while maintaining transparency of the primer layer, and when viewed from the outside of the refrigerator, the hairline that is visible through the primer layer and the film layer is visible together with the color of the primer layer.