Color Accessibility on the Web

The University of Tennessee Health and Science Center websites and digital applications aim to comply with WCAG 2.1 AA guidelines. This includes a required contrast ratio for text and images of text of at least 4.5:1 for normal text and 3:1 for large text. WCAG 2.1 requires a contrast ratio of at least 3:1 for graphics and user interface components (such as form input borders).

To make choosing accessible colors easy, use the guide below to view accessible combinations of our primary and secondary color palette as applied to large text (18pt and larger, 14pt bold and larger), small text (17.9pt and smaller, 13.9pt bold and smaller) and graphical elements. This color palette is best-suited for digital properties such as the website and email. 

 

Tennessee Orange Accessibility

 

 

Accessible Foreground Colors on White Background

 

 

Accessible Background Colors for White Text

Accessible Background Colors for 80% Black Text