Design
This component is fully responsive and intentionally designed to be used across all viewports — mobile, tablet, and desktop — with no alternative versions required.
When to use it (and when not to)
Section titled “When to use it (and when not to)”Use the accordion when:
- You need to present several groups of related information, but not all of it needs to be visible at once.
- You want to reduce visual clutter and keep the page easier to scan.
- Users may only need to access some details depending on their specific needs or interests.
- You want to avoid long scrolling, especially on mobile devices or content-dense pages.
- The content in each section can be understood independently from the rest.
Avoid the accordion when:
- The content is essential for understanding the page and should remain visible without interaction.
- Users need to compare information across multiple sections at the same time.
- The page only contains one section of information (in that case, display it directly).
- Frequent opening and closing would interrupt the user’s workflow or slow them down.
Properties
Section titled “Properties”State: Collapsed by Contrast
Section titled “State: Collapsed by Contrast”Icon and title
Width: 212
Title
Text color:
color-foreground-contrast-emphasis#ffffffcolor-foreground-contrast-emphasis#ffffffLine
Background color:
color-border-contrast-default#d4d2d1color-border-contrast-default#e4e4e4Accordion
Width: 312
Border radius: 0
False
Title
Text color:
color-foreground-neutral-default#333333color-foreground-neutral-default#282830Line
Background color:
color-border-neutral-muted#999999color-border-neutral-muted#a8aaacState: Expanded by Contrast
Section titled “State: Expanded by Contrast”True
Icon and title
Width: 212
Title
Text color:
color-foreground-contrast-emphasis#ffffffcolor-foreground-contrast-emphasis#ffffffLine
Background color:
color-border-contrast-emphasis#ffffffcolor-border-contrast-emphasis#ffffffText
Text color:
color-foreground-contrast-default#fbfbfccolor-foreground-contrast-default#fbfbfcFalse
Title
Text color:
color-foreground-neutral-default#333333color-foreground-neutral-default#282830Line
Background color:
color-border-neutral-muted#999999color-border-neutral-muted#a8aaacText
Text color:
color-foreground-neutral-default#333333color-foreground-neutral-default#282830State: Hover by Contrast
Section titled “State: Hover by Contrast”True
Icon and title
Width: 212
Title
Text color:
color-foreground-contrast-emphasis#ffffffcolor-foreground-contrast-emphasis#ffffffLine
Background color:
color-border-contrast-emphasis#ffffffcolor-border-contrast-emphasis#ffffffFalse
Title
Text color:
color-foreground-neutral-default#333333color-foreground-neutral-default#282830Line
Background color:
color-border-neutral-default#282830color-border-neutral-default#282830State: Focus by Contrast
Section titled “State: Focus by Contrast”True
Accordion
Border color:
color-border-focus-contrast-default#ffffffcolor-border-focus-contrast-default#60a7ff Border weight: 2
Border radius: 2
Accordion
Contrast: True
False
Accordion
Border color:
color-border-focus-neutral-default#c57046color-border-focus-neutral-default#0072f0 Border weight: 2
Border radius: 2
Accordion
Contrast: False
Styling
Section titled “Styling”Colors
Section titled “Colors”| Name | Applied as | Applied to |
|---|---|---|
color-foreground-contrast-emphasis | Text color | Accordion Title |
color-foreground-contrast-emphasis | Text color | Accordion Title |
color-foreground-contrast-default | Text color | Accordion Title |
color-foreground-contrast-default | Text color | Accordion Title |
color-foreground-contrast-muted | Text color | Accordion Title |
color-foreground-contrast-muted | Text color | Accordion Title |
color-foreground-neutral-default | Text color | Accordion Title |
color-foreground-neutral-default | Text color | Accordion Title |
color-foreground-neutral-emphasis | Text color | Accordion Title |
color-foreground-neutral-emphasis | Text color | Accordion Title |
color-foreground-neutral-muted | Text color | Accordion Title |
color-foreground-neutral-muted | Text color | Accordion Title |
color-foreground-neutral-subtle | Text color | Accordion Title |
color-foreground-neutral-subtle | Text color | Accordion Title |
color-border-neutral-muted | Border color | Line |
color-border-neutral-muted | Border color | Line |
color-border-neutral-default | Border color | Line |
color-border-neutral-default | Border color | Line |
color-border-contrast-default | Border color | Line |
color-border-contrast-default | Border color | Line |
color-border-contrast-emphasis | Border color | Line |
color-border-contrast-emphasis | Border color | Line |
color-border-contrast-subtle | Border color | Line |
color-border-contrast-subtle | Border color | Line |
Text styles
Section titled “Text styles”| Name | Applied as | Applied to |
|---|---|---|
Lorem Ipsum typography-body-6 | Text style | Text |
Lorem Ipsum typography-body-6 | Text style | Text |
Lorem Ipsum typography-body-6 (emphasis) | Text style | Accordion Title |
Lorem Ipsum typography-body-6 (emphasis) | Text style | Accordion Title |
Guidance on how to use a component.
- Use it to organize and display content progressively, allowing users to reveal or hide information as needed.
- Help reduce cognitive overload by showing only the most relevant content at first glance.
- Use when the user does not need to see all information at once, or when content is grouped by topics or categories.
- Maintain consistent spacing between accordions to support scannability and visual rhythm.
- Use clear and descriptive titles for accordion headers to communicate their purpose.
- When multiple accordions are used, consider whether they should expand independently or as a single-item expansion group (only one open at a time).
- Keep animations smooth and consistent across variants and themes.
- Verify that keyboard navigation and focus indicators work properly across all accordion items.
Guidance on what to avoid when using a component.
- Don’t use accordions to hide critical or frequently needed information. If users must always see the content, it shouldn’t be collapsible.
- Avoid nesting accordions inside other accordions, as it complicates navigation and accessibility.
- Don’t use too many accordion items in one view — it may cause scroll fatigue and reduce clarity.
- Don’t rely on animation alone to signal state change — always provide clear visual or semantic cues.
- Don’t rely solely on colour or icons to indicate the open/closed state — always include a clear visual cue (e.g. arrow rotation).
- Don’t remove or modify focus states that help users understand where they are when navigating with a keyboard.
- Avoid using accordions in layouts with minimal vertical space, where content expansion will disrupt the structure.
Best practices
Section titled “Best practices”Guidance on where this component has been used
Structure and behavior
Section titled “Structure and behavior”- Each accordion item should contain a title (trigger) and a content area (panel).
- Titles must be keyboard-focusable and toggle their state using Enter or Space.
- Only one interactive element should control the expansion to ensure proper accessibility.
- The expand/collapse icon must rotate or animate consistently to reinforce the state change.
- Maintain minimum touch target areas (44×44 px) for mobile/touch devices.
Content and copy
Section titled “Content and copy”- Keep titles short and scannable, typically one line.
- Start titles with keywords that help users quickly identify the content.
- Use sentence case for readability (e.g. “Account details” instead of “ACCOUNT DETAILS”).
- When possible, use parallel structure across accordion titles (e.g. all start with verbs or nouns).
Accessibility
Section titled “Accessibility”- Accordions should use ARIA roles and attributes such as
aria-expanded,aria-controls, andaria-labelledby. - Ensure all states (collapsed, expanded, hover, focus) meet WCAG 2.1 AA contrast standards.
- All accordions must be fully operable via keyboard and navigable using Tab, and toggle them with Enter or Space.
- When an accordion expands, focus should remain on the header for context retention.
- Avoid disabling accordion headers unless necessary — they communicate interactiveness by design.