Which type of color code is commonly used for CMYK?

The correct answer is Pantone colors, as Pantone is a standardized color matching system that is widely used in the printing industry. It allows for precise color reproduction, which is essential when working with CMYK (Cyan, Magenta, Yellow, and Black) color processes. Pantone colors provide a specific reference for mixing inks to achieve a desired color, thereby ensuring consistency across different print materials and projects.

CMYK uses a subtractive color model, where colors are created by subtracting varying percentages of these four inks from a white background. Pantone colors complement this by offering a catalog of pre-mixed inks that can be utilized for CMYK printing, thus streamlining the design and production process.

In contrast, hex codes are typically used for web colors and RGB codes are designed for screens, where colors are created through additive mixing of red, green, and blue light. Decimal codes would not be relevant in the context of color matching for print. Understanding the role of Pantone colors in relation to CMYK is crucial for anyone involved in business writing and document production where color accuracy is vital.