Dark

From Bootstrap - Demo Wiki
Color
Name Dark
Description A gray color used as background and text.
Provider Skin, BootstrapComponents
Prefixes bg, text, alert, badge
Extension Components Alert, Badge, Button, Card, Modal, Popover
Reference getbootstrap.com - color

Background

Code
<div class="p-3 text-light bg-dark" >
This is a div with light text over a dark background!
</div>
Result

This is a div with light text over a dark background!

Text

Code
<div class="p-3 text-dark bg-light" >
This is div with dark text over a light background!
</div>
Result

This is div with dark text over a light background!

Alert

Code
<div class="alert alert-dark" role="alert">
This is a dark alert — check it out!
</div>
Result

Badge

Code
===Example heading <span class="badge badge-dark">New</span>===
Result

Example heading New

Card

Code
<div class="card text-white bg-dark mb-3" style="max-width: 18rem;">
  <div class="card-header">Header</div>
  <div class="card-body">
    <h5 class="card-title">Dark card title</h5>
    <p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
  </div>
</div>
Result
Header
Dark card title

Some quick example text to build on the card title and make up the bulk of the card's content.