Convey meaning through color with a handful of color utility classes. Includes support for styling links with hover states, too.


When using .text-* and .bg-* utilities, contrasts are locked to ensure they’re sufficient by defining color and background-color altogether. Please refer to accessibility’s color contrast section to have a full preview of Boosted color palette’s contrast ratios.

Dealing with specificity

Sometimes contextual classes cannot be applied due to the specificity of another selector. In some cases, a sufficient workaround is to wrap your element’s content in a <div> with the class.

Conveying meaning to assistive technologies

Using color to add meaning only provides a visual indication, which will not be conveyed to users of assistive technologies – such as screen readers. Ensure that information denoted by the color is either obvious from the content itself (e.g. the visible text), or is included through alternative means, such as additional text hidden with the .sr-only class.


.text-* utilities are meant to modify text color, but also set a background-color to ensure contrasts.







<!-- Boosted mod: no need for .bg-* utilities -->
<p class="text-primary">.text-primary</p><p class="text-secondary">.text-secondary</p><p class="text-light">.text-light</p>
<p class="text-body">.text-body</p>
<p class="text-muted">.text-muted</p>
<p class="text-white">.text-white</p>
<!-- End mod -->

Contextual text classes also work well on anchors with the provided hover and focus states. Note that the .text-white and .text-muted class has no additional link styling beyond underline.

Boosted also handle color variation on hover (lighten or darken) depending on contrast ratio.

<!-- Boosted mod: no need for .bg-* utilities -->
<p><a href="#" class="text-primary">Primary link</a></p><p><a href="#" class="text-secondary">Secondary link</a></p><p><a href="#" class="text-light">Light link</a></p>
<p><a href="#" class="text-muted">Muted link</a></p>
<p><a href="#" class="text-white">White link</a></p>
<!-- End mod -->

Background color

Similar to the contextual text color classes, easily set the background of an element to any contextual class. Anchor components will darken or lighten on hover, just like the text classes.

<!-- Boosted mod: no need for .text-* utilities -->
<div class="p-3 mb-2 bg-primary">.bg-primary</div>
<div class="p-3 mb-2 bg-secondary">.bg-secondary</div>
<div class="p-3 mb-2 bg-success">.bg-success</div>
<div class="p-3 mb-2 bg-danger">.bg-danger</div>
<div class="p-3 mb-2 bg-warning">.bg-warning</div>
<div class="p-3 mb-2 bg-info">.bg-info</div>
<div class="p-3 mb-2 bg-light">.bg-light</div>
<div class="p-3 mb-2 bg-purple">.bg-purple</div>
<div class="p-3 mb-2 bg-white">.bg-white</div>
<div class="p-3 mb-2 bg-transparent">.bg-transparent</div>
<!-- end mod -->