Enforcement Rules of the Trademark Act Article 14

Where the application contains a statement to the effect that the trademark is a color trademark, the reproduction of the trademark shall consist of a sample of the color or colors. The reproduction may use broken lines to show the manner, placement or context in which the color is or the colors are used on the designated goods or services.The applicant shall furnish a description indicating the color or colors and the manner in which it is or they are used on the designated goods or services.
中文原文 商標法施行細則第14條
申請註冊顏色商標者,商標圖樣應呈現商標之顏色,並得以虛線表現顏色使用於指定商品或服務之方式、位置或內容態樣。
申請人應提供商標描述,說明顏色及其使用於指定商品或服務之情形。

English translation for reference only; the Chinese text prevails. Not legal advice.