If a registered trademark with a specified color changes its color during use, it is an act of changing the registered trademark on its own initiative. The industrial and commercial administration authority will order it to make corrections within a time limit until it reports to the Trademark Office to cancel the registered trademark. For registered black and white trademarks, the use of color is not prohibited by law, but the color is not protected. Registered trademarks with designated colors are more distinctive and have a higher pass rate. Trademarks registered in black and white do not protect the color, so you can change the color of the trademark after successful registration. Trademarks registered in black and white are more practical. When registering a trademark, whether to specify a color depends entirely on the customer's needs.