A commonly used standardized system for matching colors in printing inks is called?

The correct answer is Pantone, which refers to the Pantone Matching System (PMS). This standardized color reproduction system is widely used in various industries, particularly in printing, to ensure color consistency across different materials and platforms. Pantone assigns a unique number to each color, allowing designers and manufacturers to match colors precisely, regardless of the printing technique or substrate. This system is crucial for branding, as it helps companies maintain visual identity by ensuring that their colors look the same in different prints and applications.

The other options do not provide the same level of standardization or recognition. A paint swatch is more of a sample used for color selection but lacks a universal system for matching colors. A color wheel represents the relationships between colors, offering a theoretical framework rather than specific standards for use in printing. A color chart includes a range of colors but does not necessarily provide the specificity and consistency associated with Pantone. Therefore, Pantone stands out as the established leader in color matching systems, especially within the printing and design industries.