Data Visualization Toolkit: Charts Accessibility Tips

Charts icon

When we think of visually representing data, charts (or graphs) are typically what first come to mind. To avoid having charts that look like Excel defaults or uninspired, here are some tips for creating charts that accurately represent the data and fuel engagement in data-based action.

Charts Accessibility Tips

  • All images, including charts, must have alt text (alternative text) that describes the nature or content of the image. If a more complex chart is being described, a summary and table near the chart should both be used.
  • Color choices are important. Use color to reinforce your message, but do not rely on it to show key details. See our Accessibility Tips for using color in the Color section.
This line chart is inaccessible with similar colors and no labels.
This accessible line chart uses different types of lines to show the data instead of relying on colors. There are also additional labels added.

Penn State’s Accessibility and Usability site offers more details on how to make accessible charts.