Bootstrap/docs/4.0/utilities/colors.md

layout	title	description	group	toc
docs	Colors	Convey meaning through color with a handful of color utility classes. Includes support for styling links with hover states, too.	utilities	true

Color

{% capture example %} {% for color in site.data.theme-colors %}

.text-{{ color.name }}

{% endfor %}

.text-body

.text-muted

.text-white

.text-black-50

.text-white-50

{% endcapture %} {% include example.html content=example %}

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 link styling.

{% capture example %} {% for color in site.data.theme-colors %}

{{ color.name | capitalize }} link

{% endfor %}

Muted link

White link

{% endcapture %} {% include example.html content=example %}

Background color

Similar to the contextual text color classes, easily set the background of an element to any contextual class. Anchor components will darken on hover, just like the text classes. Background utilities do not set color, so in some cases you'll want to use .text-* utilities.

{% capture example %} {% for color in site.data.theme-colors %}

.bg-{{ color.name }}

{% endfor %}

.bg-white

.bg-transparent

{% endcapture %} {% include example.html content=example %}

Background gradient

When $enable-gradients is set to true, you'll be able to use .bg-gradient- utility classes. By default, $enable-gradients is disabled and the example below is intentionally broken. This is done for easier customization from the moment you start using Bootstrap. [Learn about our Sass options]({{ site.baseurl }}/docs/{{ site.docs_version }}/getting-started/theming/#sass-options) to enable these classes and more.

{% capture example %} {% for color in site.data.theme-colors %}

.bg-gradient-{{ color.name }}

{% endfor %} {% endcapture %} {% include example.html content=example %}

{% capture callout %}

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. {% endcapture %} {% include callout.html content=callout type="info" %}

{% include callout-warning-color-assistive-technologies.md %}