Accessibility

This application strives to follow the NZ Web Accessibility Standard to allow accessing the website content and data by visually impaired audiences.

In particular this application features:

Colour contrast ratios

• The colour contrast for regular text should exceed 4.5.
• The colour contrast ratio for large text (18pt/24px or 14pt/18.66px and bold) should exceed 3. Note: coloured text or white text on coloured background are only used with the 6 focus area colours that all exceed a contrast ratio of 3 (when compared with white). The current palette can be seen here: https://accessibility.oit.ncsu.edu/tools/color-contrast/accessible-color-palette.php?&colors=fff,491C8B,AD9300,00A2C7,199F8B,2956D1,FC6128&main=fff&level=AA

Keyboard navigation

The application should be fully navigable by keyboard and includes

• a "Skip to content" link
• logical tab order
• set focus on navigation

Screenreader support

• HTML landmarks (roles: banner, navigation, main)
• Recognisable links
• Alt text for images (unless presentational)
• Navigation feedback messages announced
• A caption and a text-based alternative is rendered for all data visualisations