What type of color code is used for RGB?

The correct choice is based on the standard way colors are represented in digital formats for displays, such as computer screens and smartphones. RGB stands for Red, Green, and Blue, which are the primary colors of light. In the context of digital graphics, RGB values directly correspond to the intensity of these three colors.

The use of Hex codes is a specific representation of RGB values in a hexadecimal format, primarily used in web design. Each RGB combination can be represented as a six-digit hexadecimal number, with two digits for each color. Therefore, while Hex codes relate closely to RGB, they are not the same as RGB values.

In contrast, Pantone colors and CMYK codes are related to print media. Pantone provides standardized colors often used for printing; CMYK stands for Cyan, Magenta, Yellow, and Key (black), which are used in color printing. These systems do not apply directly to RGB coding used in digital displays, hence making them unsuitable for this particular question regarding color representation in the RGB model.