Data visualisations
Can you understand the trend of the graph and grasp the relationship between parts of the data?
Why it’s important:
- Amanda has difficulty reading graphs with small text.
- Nikau is colourblind and cannot rely on colour to explain the data.
Next steps
- Follow data visualisation best practices instead of the latest aesthetic trends. Dictate the format and style through your data and communication goals.
- Support the visuals with a brief description of the trend that’s generated by the chart to give context.
- Where applicable label each axis and their tick marks. This should be visible to the user and accessible through Assistive technology.
- When designing accessible maps and info-graphics use a combination of colour and texture. By combining colour with a pattern users will have two pieces of information to decipher.
- Use generous colour contrast ratios for all graphics to assist Colour blind users.
- Consider complementing the graph with a table of information. This will assist screen readers and easier to read in mobile view.
- Avoid using sliders or other intricate tools to allow users to manipulate graphs. Dropdown inputs have more support with screen readers.
References
Resources
- The Importance of Accessibility in Data Visualisations(this link opens an external website)
- A Comprehensive Guide to Accessible Data Visualisation(this link opens an external website)
- An intro to designing accessible Data Visualisations(this link opens an external website)