background-color
The background-color
CSS property sets the background color of an element.
Try it
Syntax
css
/* Keyword values */
background-color: red;
background-color: indigo;
/* Hexadecimal value */
background-color: #bbff00; /* Fully opaque */
background-color: #bf0; /* Fully opaque shorthand */
background-color: #11ffee00; /* Fully transparent */
background-color: #1fe0; /* Fully transparent shorthand */
background-color: #11ffeeff; /* Fully opaque */
background-color: #1fef; /* Fully opaque shorthand */
/* RGB value */
background-color: rgb(255 255 128); /* Fully opaque */
background-color: rgb(117 190 218 / 0.5); /* 50% transparent */
/* HSL value */
background-color: hsl(50 33% 25%); /* Fully opaque */
background-color: hsl(50 33% 25% / 0.75); /* 75% opaque, i.e. 25% transparent */
/* Special keyword values */
background-color: currentcolor;
background-color: transparent;
/* Global values */
background-color: inherit;
background-color: initial;
background-color: revert;
background-color: revert-layer;
background-color: unset;
The background-color
property is specified as a single <color>
value.
Values
<color>
-
The uniform color of the background. It is rendered behind any
background-image
that is specified, although the color will still be visible through any transparency in the image.
Accessibility concerns
It is important to ensure that the contrast ratio between the background color and the color of the text placed over it is high enough that people experiencing low vision conditions will be able to read the content of the page.
Color contrast ratio is determined by comparing the luminance of the text and background color values. In order to meet current Web Content Accessibility Guidelines (WCAG), a ratio of 4.5:1 is required for text content and 3:1 for larger text such as headings. Large text is defined as 18.66px and bold or larger, or 24px or larger.
Formal definition
Initial value | transparent |
---|---|
Applies to | all elements. It also applies to ::first-letter and ::first-line . |
Inherited | no |
Computed value | computed color |
Animation type | a color |
Formal syntax
background-color =
<color>
Examples
HTML
html
<div class="exampleone">Lorem ipsum dolor sit amet, consectetuer</div>
<div class="exampletwo">Lorem ipsum dolor sit amet, consectetuer</div>
<div class="examplethree">Lorem ipsum dolor sit amet, consectetuer</div>
CSS
css
.exampleone {
background-color: transparent;
}
.exampletwo {
background-color: rgb(153, 102, 153);
color: rgb(255, 255, 204);
}
.examplethree {
background-color: #777799;
color: #ffffff;
}
Result
Specifications
Specification |
---|
CSS Backgrounds and Borders Module Level 3 # background-color |
Browser compatibility
BCD tables only load in the browser
See also
- Multiple backgrounds
- The
<color>
data type - Other color-related properties:
color
,border-color
,outline-color
,text-decoration-color
,text-emphasis-color
,text-shadow
,caret-color
, andcolumn-rule-color
- Applying color to HTML elements using CSS