Read time: 50 seconds

Can you understand the overall trend of the graph?

Can you quickly grasp the relationship between parts of the data?

  • Why it's important

    • Kwame has trouble reading graphs with small text.

Steps to take

  1. Follow data visualisation best practices. Allow the data and your communication goals for the visualisation to dictate format and visual style, instead of the latest aesthetic trend.
  2. Give context. Support the visuals with a brief description of the overall trend that’s generated by the chart.
  3. Ensure the data and variables are clearly labeled.
  4. Make sure there’s sufficient contrast between graph colors. People with colour blindness will be able to better distinguish the colours.
  5. Think about complementing the graph with a table of information. It will be read more easily by a screen reader and when compressed to mobile.
  6. Test what it’s like to view your designs through NoCoffee vision simulator (chrome extension) or similar tool.

Web Content Accessibility Guidelines

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Last update: 21 August 2019, editorial review.