{ { < callout info }} { { < partial "callouts/warning-color-assistive-technologies.md" }} { { < /callout }}

Colors#

Colorize text with color utilities. If you want to colorize links, you can use the .link-* helper classes which have :hover and :focus states.

{ { < callout info }} Color utilities like .text-* that generated from our original $theme-colors Sass map don't yet respond to color modes, however, any .text-*-emphasis utility will. This will be resolved in v6. { { < /callout }}

{ {< example >} } { {< colors.inline >} } { {- range (index $.Site.Data "theme-colors") } }

.text-{ { .name } }

.text-{ { .name } }-emphasis

{ {- end -} } { {< /colors.inline >} }

.text-body

.text-body-emphasis

.text-body-secondary

.text-body-tertiary

.text-black

.text-white

.text-black-50

.text-white-50

{ {< /example >} }

{ { < callout warning }} Deprecation: With the addition of .text-opacity-* utilities and CSS variables for text utilities, .text-black-50 and .text-white-50 are deprecated as of v5.1.0. They'll be removed in v6.0.0. { { < /callout }}

{ { < callout warning }} Deprecation: With the addition of the expanded theme colors and variables, the .text-muted utility has been deprecated as of v5.3.0. Its default value has also been reassigned to the new --bs-secondary-color CSS variable to better support color modes. It will be removed in v6.0.0. { { < /callout }}

Opacity#

{ { < added-in "5.1.0" }}

As of v5.1.0, text color utilities are generated with Sass using CSS variables. This allows for real-time color changes without compilation and dynamic alpha transparency changes.

How it works#

Consider our default .text-primary utility.

.text-primary {
  --bs-text-opacity: 1;
  color: rgba(var(--bs-primary-rgb), var(--bs-text-opacity)) !important;
}

We use an RGB version of our --bs-primary (with the value of 13, 110, 253) CSS variable and attached a second CSS variable, --bs-text-opacity, for the alpha transparency (with a default value 1 thanks to a local CSS variable). That means anytime you use .text-primary now, your computed color value is rgba(13, 110, 253, 1). The local CSS variable inside each .text-* class avoids inheritance issues so nested instances of the utilities don't automatically have a modified alpha transparency.

Example#

To change that opacity, override --bs-text-opacity via custom styles or inline styles.

{ {< example >} }

This is default primary text
This is 50% opacity primary text

{ {< /example >} }

Or, choose from any of the .text-opacity utilities:

{ {< example >} }

This is default primary text
This is 75% opacity primary text
This is 50% opacity primary text
This is 25% opacity primary text

{ {< /example >} }

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> or more semantic element with the desired class.

CSS#

In addition to the following Sass functionality, consider reading about our included CSS custom properties ( aka CSS variables) for colors and more.

Sass variables#

Most color utilities are generated by our theme colors, reassigned from our generic color palette variables.

{ { < scss-docs name="color-variables" file="scss/_variables.scss" }}

{ { < scss-docs name="theme-color-variables" file="scss/_variables.scss" }}

Grayscale colors are also available, but only a subset are used to generate any utilities.

{ { < scss-docs name="gray-color-variables" file="scss/_variables.scss" }}

{ { < scss-docs name="theme-text-map" file="scss/_maps.scss" }}

Variables for setting colors in .text-*-emphasis utilities in light and dark mode:

{ { < scss-docs name="theme-text-variables" file="scss/_variables.scss" }}

{ { < scss-docs name="theme-text-dark-variables" file="scss/_ variables-dark.scss" }}

Sass maps#

Theme colors are then put into a Sass map so we can loop over them to generate our utilities, component modifiers, and more.

{ { < scss-docs name="theme-colors-map" file="scss/_variables.scss" }}

Grayscale colors are also available as a Sass map. This map is not used to generate any utilities.

{ { < scss-docs name="gray-colors-map" file="scss/_variables.scss" }}

RGB colors are generated from a separate Sass map:

{ { < scss-docs name="theme-colors-rgb" file="scss/_maps.scss" }}

Color opacities build on that with their own map that's consumed by the utilities API:

{ { < scss-docs name="utilities-text-colors" file="scss/_maps.scss" }}

Color mode adaptive text colors are also available as a Sass map:

{ { < scss-docs name="theme-text-map" file="scss/_maps.scss" }}

{ { < scss-docs name="theme-text-dark-map" file="scss/_maps.scss" }}

Sass utilities API#

Color utilities are declared in our utilities API in scss/_utilities.scss. Learn how to use the utilities API.

{ { < scss-docs name="utils-color" file="scss/_utilities.scss" }}