In order to provide a white hard decorative member being remarkably enhanced in scratch resistance and abrasion resistance and having a high-quality color impression, and furthermore supply a product capable of freely controlling the color tone, corrosion resistance performance, and etching performance, the white hard decorative member includes a base material having thereon an alloy adherence layer having a high adherence effect, an alloy gradient adherence layer in which the reaction gas content is gradually increased, an abrasion-resistant layer having high hardness, and an alloy color-up gradient layer in which the reaction gas content is gradually decreased, which are formed by using a film of an alloy combining a metal having a high adherence effect to a metal and high brightness, a metal having high film hardness and high corrosion resistance, and a metal for enhancing the corrosion performance.