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Opacity

Opacity utilities set the transparency of a whole element, content included: opacity-100, -75, -50, -25 and -0. Use them for disabled looks, faded thumbnails or decoration; when only a background or border should fade, use bg-opacity-* or border-opacity-* instead.

1Opacity scale

opacity-100, -75, -50, -25 and -0 make the whole element, content included, more transparent - keep text out of strongly faded elements.

100
75
50
25
0

2Opacity versus bg-opacity

opacity-50 fades the text too, bg-opacity-50 fades only the background.

opacity-50
The text fades too - here below 4.5:1.
bg-opacity-50

3Disabled looking card

opacity-50 with pe-none shows an option that is not available yet.

Networking app
Available
Venue booking
Coming soon

4Faded image gallery

Non-selected thumbnails at opacity-50, the active one at full opacity.

Thumbnail 1 Thumbnail 2 Thumbnail 3

5Logo wall

Partner logos at opacity-50 look calm and uniform.

Partner logo Partner logo Partner logo Partner logo

6Completed tasks

Done items drop to opacity-75 and get a line through - still readable (opacity-50 text is below 4.5:1).

  • Networking app
  • Networking app
  • Speaker management

7Watermark text

Huge text at opacity-25 behind a heading as a decorative watermark (inert and aria-hidden: decoration has no contrast requirement).

Three days that change how you work

The venue is a short walk from the station and fully accessible.

8Muted icons

Decorative icons at opacity-75 or -50 next to labels.

  • 230 Hillcrest Road, Montreal
  • +1 (555) 320-3081
  • kai.ibrahim@example.com

9Inactive steps

Future steps of a progress indicator at opacity-50, marked aria-disabled until they can be reached.

1 Cart 2 Shipping 3 Payment 4 Review

10Hidden but taking space

opacity-0 keeps the layout slot, so neighbours do not move.

A
B
C

11Image tint over colour

An image at opacity-75 on a bg-primary parent picks up a brand tint.

Learn from the best, meet the rest

12Secondary actions

Quiet actions next to the main one: a link-style button, and opacity-50 on an action that is not available (a disabled button).

13Out of stock products

The sold out item has its picture at opacity-50, a label and its text at opacity-75 (still readable).

Early bird pass
Early bird pass
$87.02
Full access passSold out
Full access pass
$32.09

14Placeholder skeleton

Rows of bg-body-secondary at opacity-75 sketch content while it loads.

15Fading list

Older entries step down in opacity to suggest age.

  1. Ideas on stage, connections everywhere
  2. Be in the room where it happens
  3. Big ideas, small rooms, real conversations
  4. Meet the people shaping the future
From opacity-50 down the entries are decoration - below 4.5:1, so link to the full history instead of fading what people must read.

16Background pattern dots

Large icons at opacity-25 placed in a corner decorate a banner.

Where great ideas meet

We listen first, then build a plan around what you actually need.

17Unavailable time slots

Booked slots are disabled buttons at opacity-25 among the free slots.

18Subdued footnote

A small footnote at opacity-75 below the main content.

Friendly people answer your questions quickly, by phone, chat or email. The networking app helps you meet the right people before you arrive.

* Early bird tickets save you up to forty percent until the end of the month.

19Overlay controls

Controls on top of an image sit on a dark pill at reduced background opacity.

How to pitch a talk that gets accepted

20Avatar of inactive member

Members who left the team are shown at opacity-75 - quieter, still readable.

  • Theo Carter
  • Mason Okafor (inactive)