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

<div class="d-flex flex-wrap gap-3 small text-center">
  <div>
    <div class="bg-primary rounded-3 opacity-100 mb-1" style="width:4rem;height:3rem">
    </div>
    100
  </div>
  <div>
    <div class="bg-primary rounded-3 opacity-75 mb-1" style="width:4rem;height:3rem">
    </div>
    75
  </div>
  <div>
    <div class="bg-primary rounded-3 opacity-50 mb-1" style="width:4rem;height:3rem">
    </div>
    50
  </div>
  <div>
    <div class="bg-primary rounded-3 opacity-25 mb-1" style="width:4rem;height:3rem">
    </div>
    25
  </div>
  <div>
    <div class="bg-primary rounded-3 opacity-0 border mb-1" style="width:4rem;height:3rem">
    </div>
    0
  </div>
</div>

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

<div class="row g-2">
  <div class="col-sm-6">
    <figure class="mb-0">
      <div inert>
        <div class="bg-success text-white rounded-3 p-3 opacity-50 fw-semibold">
          opacity-50
        </div>
      </div>
      <figcaption class="small text-body-secondary mt-2 mb-0">The text fades too - here below 4.5:1.</figcaption>
    </figure>
  </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.

Motion graphics

Available

Motion graphics

Coming soon

<div class="row g-2">
  <div class="col-sm-6">
    <div class="border rounded-3 p-3">
      <div class="fw-semibold">
        Motion graphics
      </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" role="group" aria-disabled="true">
      <div class="fw-semibold">
        Motion graphics
      </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="https://images.unsplash.com/photo-1752650736252-dff5244c8a7a?auto=format&fit=crop&w=800&h=800&q=70" alt="Thumbnail 1" width="80" height="80" class="rounded-3 object-fit-cover border border-2 border-primary"> <img src="https://images.unsplash.com/photo-1787647561978-df268f9e9ec2?auto=format&fit=crop&w=800&h=800&q=70" alt="Thumbnail 2" width="80" height="80" class="rounded-3 object-fit-cover opacity-50"> <img src="https://images.unsplash.com/photo-1753162658407-93888aaabfae?auto=format&fit=crop&w=800&h=800&q=70" 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-75 and get a line through - still readable (opacity-50 text is below 4.5:1).

Brand identity
UX research
Web design

<ul class="list-unstyled mb-0 d-grid gap-2">
  <li class="opacity-75 text-decoration-line-through"><i class="bi bi-check-square" aria-hidden="true"></i> Brand identity</li>
  <li class="opacity-75 text-decoration-line-through"><i class="bi bi-check-square" aria-hidden="true"></i> UX research</li>
  <li><i class="bi bi-square" aria-hidden="true"></i> Web design</li>
</ul>

7Watermark text

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

Design that earns attention

From logo to launch campaign, everything is designed to work together.

<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" inert>
    2020
  </div>
  <h3 class="position-relative h5 fw-semibold mb-1">Design that earns attention</h3>
  <p class="position-relative small mb-0">From logo to launch campaign, everything is designed to work together.</p>
</div>

8Muted icons

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

150 Market Square, Valencia
+1 (555) 858-1751
finn.patel@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>150 Market Square, Valencia</li>
  <li><span class="opacity-50 me-2"><i class="bi bi-telephone" aria-hidden="true"></i></span>+1 (555) 858-1751</li>
  <li><span class="opacity-50 me-2"><i class="bi bi-envelope" aria-hidden="true"></i></span>finn.patel@example.com</li>
</ul>

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

<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" role="group" aria-disabled="true"><span class="badge rounded-pill text-bg-secondary">3</span> Payment</span> <span class="d-flex align-items-center gap-1 opacity-50" role="group" aria-disabled="true"><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="https://images.unsplash.com/photo-1753162658407-93888aaabfae?auto=format&fit=crop&w=1200&h=800&q=70" alt="Digital products with personality" class="w-100 d-block opacity-75"> 
</div>

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).

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

13Out of stock products

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

Brand sprint

$52.15

Sold out

Website package

$14.74

<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="Brand sprint" class="w-100 rounded-2">
      <div class="small fw-medium mt-2 text-truncate">
        Brand sprint
      </div>
      <div class="small">
        $52.15
      </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="Website package" 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-75">
        Website package
      </div>
      <div class="small opacity-75">
        $14.74
      </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.

Bold ideas, beautifully executed
Creative work with measurable results
We design brands people remember
Brands that stand out and sell

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.

<figure class="mb-0">
  <div inert>
    <ol class="list-unstyled mb-0 d-grid gap-1">
      <li class="opacity-100">Bold ideas, beautifully executed</li>
      <li class="opacity-75">Creative work with measurable results</li>
      <li class="opacity-50">We design brands people remember</li>
      <li class="opacity-25">Brands that stand out and sell</li>
    </ol>
  </div>
  <figcaption class="small text-body-secondary mt-2 mb-0">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.</figcaption>
</figure>

16Background pattern dots

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

Thoughtful design for ambitious companies

Senior designers lead every project from the first sketch to the final file.

<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">Thoughtful design for ambitious companies</h3>
  <p class="small mb-0 position-relative">Senior designers lead every project from the first sketch to the final file.</p>
</div>

17Unavailable time slots

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

<div class="d-flex flex-wrap gap-2" role="group" aria-label="Time slots">
  <button type="button" class="btn btn-sm btn-outline-secondary">09:00</button>
  <button type="button" class="btn btn-sm btn-outline-secondary opacity-25" disabled>09:30</button>
  <button type="button" class="btn btn-sm btn-outline-secondary">10:00</button>
  <button type="button" class="btn btn-sm btn-outline-secondary opacity-25" disabled>10:30</button>
  <button type="button" class="btn btn-sm btn-primary" aria-pressed="true">11:00</button>
  <button type="button" class="btn btn-sm btn-outline-secondary">11:30</button>
</div>

18Subdued footnote

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

Every detail is handled by people who care about getting it right. Small teams, short feedback loops and no handoffs lost in translation.

* Senior designers lead every project from the first sketch to the final file.

<div>
  <p class="mb-1">Every detail is handled by people who care about getting it right. Small teams, short feedback loops and no handoffs lost in translation.</p>
  <p class="small opacity-75 mb-0">* Senior designers lead every project from the first sketch to the final file.</p>
</div>

19Overlay controls

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

A checklist for your next website launch

<div class="position-relative rounded-4 overflow-hidden" style="max-width:26rem">
  <img src="https://images.unsplash.com/photo-1753162658449-e0f19e1a4cfc?auto=format&fit=crop&w=1600&h=700&q=70" alt="A checklist for your next website launch" 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-75 - quieter, still readable.

Omar Ortega
Lucas Harlow (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>Omar Ortega</span></li>
  <li class="d-flex align-items-center gap-2 opacity-75"><img src="../assets/img/avatar-5.svg" alt="" width="32" height="32" class="rounded-circle"><span>Lucas Harlow <small>(inactive)</small></span></li>
</ul>