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The border-color CSS property is a shorthand property for setting the colors on all four sides of an element's border.

Each side can be set individually using border-top-color, border-right-color, border-bottom-color, and border-left-color; or using the writing mode-aware border-block-start-color, border-block-end-color, border-inline-start-color, and border-inline-end-color.

You can find more information about border colors in Borders in Applying color to HTML elements using CSS.

Syntax

/* <color> values */
border-color: red;

/* vertical | horizontal */
border-color: red #f015ca;

/* top | horizontal | bottom */
border-color: red rgb(240,30,50,.7) green;

/* top | right | bottom | left */
border-color: red yellow green blue;

/* Global values */
border-color: inherit;
border-color: initial;
border-color: unset;

The border-color property may be specified using one, two, three, or four values.

  • When one value is specified, it applies the same color to all four sides.
  • When two values are specified, the first color applies to the top and bottom, the second to the left and right.
  • When three values are specified, the first color applies to the top, the second to the left and right, the third to the bottom.
  • When four values are specified, the colors apply to the top, right, bottom, and left in that order (clockwise).

Values

<color>
Defines the color of the border.

Formal syntax

<color>{1,4}

where
<color> = <rgb()> | <rgba()> | <hsl()> | <hsla()> | <hex-color> | <named-color> | currentcolor | <deprecated-system-color>

where
<rgb()> = rgb( <percentage>{3} [ / <alpha-value> ]? ) | rgb( <number>{3} [ / <alpha-value> ]? ) | rgb( <percentage>#{3} , <alpha-value>? ) | rgb( <number>#{3} , <alpha-value>? )
<rgba()> = rgba( <percentage>{3} [ / <alpha-value> ]? ) | rgba( <number>{3} [ / <alpha-value> ]? ) | rgba( <percentage>#{3} , <alpha-value>? ) | rgba( <number>#{3} , <alpha-value>? )
<hsl()> = hsl( <hue> <percentage> <percentage> [ / <alpha-value> ]? ) | hsl( <hue>, <percentage>, <percentage>, <alpha-value>? )
<hsla()> = hsla( <hue> <percentage> <percentage> [ / <alpha-value> ]? ) | hsla( <hue>, <percentage>, <percentage>, <alpha-value>? )

where
<alpha-value> = <number> | <percentage>
<hue> = <number> | <angle>

Examples

Complete border-color usage

HTML

<div id="justone">
  <p><code>border-color: red;</code> is equivalent to</p>
  <ul><li><code>border-top-color: red;</code></li>
    <li><code>border-right-color: red;</code></li>
    <li><code>border-bottom-color: red;</code></li>
    <li><code>border-left-color: red;</code></li>
  </ul>
</div>
<div id="horzvert">
  <p><code>border-color: gold red;</code> is equivalent to</p>
  <ul><li><code>border-top-color: gold;</code></li>
    <li><code>border-right-color: red;</code></li>
    <li><code>border-bottom-color: gold;</code></li>
    <li><code>border-left-color: red;</code></li>
  </ul>
</div>
<div id="topvertbott">
  <p><code>border-color: red cyan gold;</code> is equivalent to</p>
  <ul><li><code>border-top-color: red;</code></li>
    <li><code>border-right-color: cyan;</code></li>
    <li><code>border-bottom-color: gold;</code></li>
    <li><code>border-left-color: cyan;</code></li>
  </ul>
</div>
<div id="trbl">
  <p><code>border-color: red cyan black gold;</code> is equivalent to</p>
  <ul><li><code>border-top-color: red;</code></li>
    <li><code>border-right-color: cyan;</code></li>
    <li><code>border-bottom-color: black;</code></li>
    <li><code>border-left-color: gold;</code></li>
  </ul>
</div>

CSS

#justone {
  border-color: red;
}

#horzvert {
  border-color: gold red;
}

#topvertbott {
  border-color: red cyan gold;
}

#trbl {
  border-color: red cyan black gold;
}

/* Set width and style for all divs */
div {
  border: solid 0.3em;
  width: auto;
  margin: 0.5em;
  padding: 0.5em;
}

ul {
  margin: 0;
  list-style: none;
}

Result

Specifications

Specification Status Comment
CSS Backgrounds and Borders Module Level 3
The definition of 'border-color' in that specification.
Candidate Recommendation The transparent keyword has been removed as it is now a part of the <color> data type.
CSS Level 2 (Revision 1)
The definition of 'border-color' in that specification.
Recommendation The property is now a shorthand property.
CSS Level 1
The definition of 'border-color' in that specification.
Recommendation Initial definition.

Initial valueas each of the properties of the shorthand:
Applies toall elements. It also applies to ::first-letter.
Inheritedno
Mediavisual
Computed valueas each of the properties of the shorthand:
Animation typeas each of the properties of the shorthand:
Canonical orderthe unique non-ambiguous order defined by the formal grammar

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung Internet
Basic supportChrome Full support 1Edge Full support 12Firefox Full support 1
Notes
Full support 1
Notes
Notes Firefox also supports the following non-standard CSS properties to set the border sides to multiple colors: -moz-border-top-colors, -moz-border-right-colors, -moz-border-bottom-colors, -moz-border-left-colors
IE Full support 4Opera Full support 3.5Safari Full support 1WebView Android Full support 4Chrome Android ? Edge Mobile Full support YesFirefox Android Full support 4
Notes
Full support 4
Notes
Notes Firefox also supports the following non-standard CSS properties to set the border sides to multiple colors: -moz-border-top-colors, -moz-border-right-colors, -moz-border-bottom-colors, -moz-border-left-colors
Opera Android Full support 11Safari iOS Full support 1Samsung Internet Android ?

Legend

Full support  
Full support
Compatibility unknown  
Compatibility unknown
See implementation notes.
See implementation notes.

See also