When applying for trademark registration, the main difference between specifying a color and not specifying a color is the trademark pattern, color requirements and usage requirements.

1. Trademark design: A common trademark with a designated color includes elements such as text or graphics, and these elements are combined with color. There is no such requirement for trademark patterns that do not specify a color.

2. Color requirements: An ordinary trademark with a specified color can only contain one color, while a color trademark must contain more than two colors. Single colors cannot be protected by registration. In addition, a trademark that does not specify a color does not legally prohibit the use of the color in actual use, but it does not protect the color. Therefore, if a trademark with a specific color is registered or changed during use, it is an act of voluntarily changing the registered trademark, and requires The industrial and commercial administration department ordered corrections within a time limit and even revoked the registered trademark.

3. Usage requirements: Common trademarks with designated colors need to be consistent during registration and actual use, and must not be changed arbitrarily. There is no such restriction for color trademarks, which are related to the shape of the goods when the color trademark is used.

In summary, a common trademark with a designated color contains specific text or graphics and other elements, and can be a single color. There is no such requirement for trademarks that do not specify a color, but the trademark pattern can be fixed or changed, depending on the specific application of the trademark.