Bandeau d’information

Anatomy

1. Container
2. Supporting text
3. Action button (optional)
4. Close button (optional)

Note : For an easy web accessibility it is better to avoid adding actions and closing buttons to your snackbar.

Best practices for Snackbar

Container

Snackbars are presented in rectangular containers with a solid grey background for legibility.

• Use a solid background with shadow to distinguish the snackbar from content.
• Slight transparency is acceptable, but text must remain legible.
• Do not: significantly alter the container shape or remove elevation.

Text Label

Snackbars include a text label that clearly communicates the action or process being performed.

• Keep labels short, clear, and informative.
• Do not include icons in snackbars; if an icon is needed, consider another component.

Action

Snackbars can include a single text button for user actions related to the process.

• Action buttons should use colored text to stand out from the label.
• Do not: use the same color for label and action, or use filled/elevated buttons.
• Caution: A “Dismiss” button is usually unnecessary since snackbars disappear automatically.
• Do: allow longer actions on a third line if needed, and include actions like “Undo” to let users amend choices.

Frequency

Only one snackbar must be displayed at a time.

When to use Snackbar ?

Use a snackbar for short, non-critical feedback after a user action.

Good use cases:

• Confirming an action
• Showing a quick status update
• Providing a simple optional action

Key idea: Snackbars are for feedback, not for decisions.

When NOT to use a snackbar ?

Avoid using a snackbar when the message is important or requires attention.

Don’t use it for:

• Errors that block the user
• Important warnings
• Long or complex messages
• Actions that require a decision

Use modals, alerts, or inline messages instead.

Why use a snackbar ?

• Keeps the experience smooth and non-disruptive
• Gives users instant feedback
• Does not interrupt the user flow