What is the purpose of including patterns along with color in non-text content?

Including patterns along with color in non-text content serves a critical accessibility function. The primary purpose is to convey information to users who may have color vision deficiencies or are unable to distinguish between certain colors. When patterns are combined with color, the information presented becomes more accessible to a wider audience, including those who rely on visual cues beyond color alone. For example, in a graph that uses color-coded segments to represent different data sets, adding distinct patterns can help individuals who cannot differentiate between those colors still understand the information being presented. This approach ensures that all users can comprehend the same content, fostering an inclusive environment.

The other options—adding visual variety, beautifying charts and graphs, or providing a decorative element—do not adequately address the core accessibility needs. While aesthetic aspects can enhance the presentation, they do not fulfill the essential role of ensuring that information is accessible to all users, particularly those with visual impairments.