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.

100

75

50

25

0

<div class="d-flex flex-wrap gap-2">
  <div class="bg-primary text-white rounded-3 p-3 opacity-100">
    <code class="small">100</code>
  </div>
  <div class="bg-primary text-white rounded-3 p-3 opacity-75">
    <code class="small">75</code>
  </div>
  <div class="bg-primary text-white rounded-3 p-3 opacity-50">
    <code class="small">50</code>
  </div>
  <div class="bg-primary text-white rounded-3 p-3 opacity-25">
    <code class="small">25</code>
  </div>
  <div class="bg-primary text-white rounded-3 p-3 opacity-0 border">
    <code class="small">0</code>
  </div>
</div>

2Opacity versus bg-opacity

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

opacity-50

bg-opacity-50

<div class="row g-2">
  <div class="col-sm-6">
    <div class="bg-success text-white rounded-3 p-3 opacity-50 fw-semibold">
      opacity-50
    </div>
  </div>
  <div class="col-sm-6">
    <div class="bg-success bg-opacity-50 rounded-3 p-3 fw-semibold">
      bg-opacity-50
    </div>
  </div>
</div>

3Disabled looking card

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

Workflow automation

Available

Team analytics

Coming soon

<div class="row g-2">
  <div class="col-sm-6">
    <div class="border rounded-3 p-3">
      <div class="fw-semibold">
        Workflow automation
      </div>
      <div class="small text-body-secondary">
        Available
      </div>
    </div>
  </div>
  <div class="col-sm-6">
    <div class="border rounded-3 p-3 opacity-50 pe-none" aria-disabled="true">
      <div class="fw-semibold">
        Team analytics
      </div>
      <div class="small text-body-secondary">
        Coming soon
      </div>
    </div>
  </div>
</div>

4Faded image gallery

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

<div class="d-flex gap-2">
  <img src="../assets/img/square-1.svg" alt="Thumbnail 1" width="80" height="80" class="rounded-3 object-fit-cover border border-2 border-primary"> <img src="../assets/img/square-2.svg" alt="Thumbnail 2" width="80" height="80" class="rounded-3 object-fit-cover opacity-50"> <img src="../assets/img/square-3.svg" alt="Thumbnail 3" width="80" height="80" class="rounded-3 object-fit-cover opacity-50"> 
</div>

5Logo wall

Partner logos at opacity-50 look calm and uniform.

<div class="d-flex flex-wrap justify-content-center align-items-center gap-4">
  <img src="../assets/img/logo-1.svg" alt="Partner logo" width="120" class="opacity-50"> <img src="../assets/img/logo-2.svg" alt="Partner logo" width="120" class="opacity-50"> <img src="../assets/img/logo-3.svg" alt="Partner logo" width="120" class="opacity-50"> <img src="../assets/img/logo-4.svg" alt="Partner logo" width="120" class="opacity-50"> 
</div>

6Completed tasks

Done items drop to opacity-50 and get a line through.

Workflow automation
Smart reporting
Team analytics

<ul class="list-unstyled mb-0 d-grid gap-2">
  <li class="opacity-50 text-decoration-line-through"><i class="bi bi-check-square" aria-hidden="true"></i> Workflow automation</li>
  <li class="opacity-50 text-decoration-line-through"><i class="bi bi-check-square" aria-hidden="true"></i> Smart reporting</li>
  <li><i class="bi bi-square" aria-hidden="true"></i> Team analytics</li>
</ul>

7Watermark text

Huge text at opacity-25 behind a heading as a decorative watermark.

Plan, build and launch in one place

This modern team connects projects moving forward at a fair price.

<div class="position-relative overflow-hidden rounded-4 bg-body-tertiary p-4">
  <div class="position-absolute top-50 start-50 translate-middle display-1 fw-bold text-primary opacity-25 text-nowrap pe-none" aria-hidden="true">
    2016
  </div>
  <h3 class="position-relative h5 fw-semibold mb-1">Plan, build and launch in one place</h3>
  <p class="position-relative small mb-0">This modern team connects projects moving forward at a fair price.</p>
</div>

8Muted icons

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

254 Orchard Close, Oslo
+1 (555) 688-7129
ravi.brennan@example.com

<ul class="list-unstyled mb-0 d-grid gap-2">
  <li><span class="opacity-50 me-2"><i class="bi bi-geo-alt" aria-hidden="true"></i></span>254 Orchard Close, Oslo</li>
  <li><span class="opacity-50 me-2"><i class="bi bi-telephone" aria-hidden="true"></i></span>+1 (555) 688-7129</li>
  <li><span class="opacity-50 me-2"><i class="bi bi-envelope" aria-hidden="true"></i></span>ravi.brennan@example.com</li>
</ul>

9Inactive steps

Future steps of a progress indicator at opacity-50.

1 Cart 2 Shipping 3 Payment 4 Review

<div class="d-flex flex-wrap gap-3 small fw-medium">
  <span class="d-flex align-items-center gap-1"><span class="badge rounded-pill text-bg-success">1</span> Cart</span> <span class="d-flex align-items-center gap-1"><span class="badge rounded-pill text-bg-primary">2</span> Shipping</span> <span class="d-flex align-items-center gap-1 opacity-50"><span class="badge rounded-pill text-bg-secondary">3</span> Payment</span> <span class="d-flex align-items-center gap-1 opacity-50"><span class="badge rounded-pill text-bg-secondary">4</span> Review</span> 
</div>

10Hidden but taking space

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

A

B

C

<div class="d-flex gap-2">
  <div class="bg-info-subtle rounded-3 p-3">
    <code class="small">A</code>
  </div>
  <div class="bg-info-subtle rounded-3 p-3 opacity-0">
    <code class="small">B</code>
  </div>
  <div class="bg-info-subtle rounded-3 p-3">
    <code class="small">C</code>
  </div>
</div>

11Image tint over colour

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

<div class="bg-primary rounded-4 overflow-hidden" style="max-width:24rem">
  <img src="../assets/img/photo-7.svg" alt="Ship faster with less busywork" class="w-100 d-block opacity-75"> 
</div>

12Secondary actions

A low opacity button group for actions that should not compete with the main one.

<div class="d-flex flex-wrap gap-2">
  <button type="button" class="btn btn-primary">Save</button>
  <button type="button" class="btn btn-outline-secondary opacity-75">Duplicate</button>
  <button type="button" class="btn btn-outline-secondary opacity-50">Archive</button>
</div>

13Out of stock products

The sold out item is shown at opacity-50 with a label.

Starter plan

$88.66

Sold out

Analytics add-on

$52.60

<div class="row g-3">
  <div class="col-6 col-md-4">
    <div class="border rounded-3 p-2">
      <img src="../assets/img/product-1.svg" alt="Analytics add-on" class="w-100 rounded-2">
      <div class="small fw-medium mt-2 text-truncate">
        Starter plan
      </div>
      <div class="small">
        $88.66
      </div>
    </div>
  </div>
  <div class="col-6 col-md-4">
    <div class="border rounded-3 p-2 position-relative">
      <img src="../assets/img/product-2.svg" alt="Team plan" class="w-100 rounded-2 opacity-50"><span class="badge text-bg-dark position-absolute top-0 start-0 m-3">Sold out</span>
      <div class="small fw-medium mt-2 text-truncate opacity-50">
        Analytics add-on
      </div>
      <div class="small opacity-50">
        $52.60
      </div>
    </div>
  </div>
</div>

14Placeholder skeleton

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

<div class="d-flex gap-3 align-items-center" aria-hidden="true">
  <div class="bg-body-secondary rounded-circle opacity-75" style="width:48px;height:48px">
  </div>
  <div class="flex-grow-1">
    <div class="bg-body-secondary rounded-pill mb-2 w-50 opacity-75" style="height:10px">
    </div>
    <div class="bg-body-secondary rounded-pill w-75 opacity-50" style="height:10px">
    </div>
  </div>
</div>

15Fading list

Older entries step down in opacity to suggest age.

Ship faster with less busywork
Ship faster with less busywork
Automate the boring parts of work
Ship faster with less busywork

<ol class="list-unstyled mb-0 d-grid gap-1">
  <li class="opacity-100">Ship faster with less busywork</li>
  <li class="opacity-75">Ship faster with less busywork</li>
  <li class="opacity-50">Automate the boring parts of work</li>
  <li class="opacity-25">Ship faster with less busywork</li>
</ol>

16Background pattern dots

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

One platform for every workflow

This fast launch helps every detail in view without extra tools.

<div class="position-relative overflow-hidden text-bg-primary rounded-4 p-4">
  <span class="position-absolute top-0 end-0 display-1 opacity-25 me-3" aria-hidden="true"><i class="bi bi-stars" aria-hidden="true"></i></span> 
  <h3 class="h5 fw-semibold position-relative">One platform for every workflow</h3>
  <p class="small mb-0 position-relative">This fast launch helps every detail in view without extra tools.</p>
</div>

17Unavailable time slots

Booked slots at opacity-25 among free slots.

09:0009:30 10:0010:30 11:0011:30

<div class="d-flex flex-wrap gap-2">
  <span class="border rounded-2 px-3 py-1 small">09:00</span><span class="border rounded-2 px-3 py-1 small opacity-25">09:30</span> <span class="border rounded-2 px-3 py-1 small">10:00</span><span class="border rounded-2 px-3 py-1 small opacity-25">10:30</span> <span class="border border-primary bg-primary-subtle rounded-2 px-3 py-1 small">11:00</span><span class="border rounded-2 px-3 py-1 small">11:30</span> 
</div>

18Subdued footnote

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

This calm process turns results you can measure all year round. A flexible experience lets projects moving forward all year round.

* This calm experience guides your work organised without extra tools.

<div>
  <p class="mb-1">This calm process turns results you can measure all year round. A flexible experience lets projects moving forward all year round.</p>
  <p class="small opacity-75 mb-0">* This calm experience guides your work organised without extra tools.</p>
</div>

19Overlay controls

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

<div class="position-relative rounded-4 overflow-hidden" style="max-width:26rem">
  <img src="../assets/img/wide-11.svg" alt="Inside the focused goal" class="w-100 d-block"> 
  <div class="position-absolute bottom-0 start-50 translate-middle-x mb-3 bg-dark bg-opacity-50 rounded-pill px-3 py-1 d-flex gap-3 text-white">
    <span><i class="bi bi-skip-backward-fill" aria-hidden="true"></i></span><span><i class="bi bi-play-fill" aria-hidden="true"></i></span><span><i class="bi bi-skip-forward-fill" aria-hidden="true"></i></span> 
  </div>
</div>

20Avatar of inactive member

Members who left the team are shown at opacity-50.

Liam Tanaka
Arjun Sato (inactive)

<ul class="list-unstyled mb-0 d-grid gap-2">
  <li class="d-flex align-items-center gap-2"><img src="../assets/img/avatar-4.svg" alt="" width="32" height="32" class="rounded-circle"><span>Liam Tanaka</span></li>
  <li class="d-flex align-items-center gap-2 opacity-50"><img src="../assets/img/avatar-5.svg" alt="" width="32" height="32" class="rounded-circle"><span>Arjun Sato <small>(inactive)</small></span></li>
</ul>