The border-left-color CSS property sets the color of the left border of an element. Note that in many cases the shorthand CSS properties border-color or border-left are more convenient and preferable.

Initial valuecurrentColor
Applies toall elements. It also applies to ::first-letter.
Computed valueIf the value is translucent, the computed value will be the rgba() corresponding one. If it isn't, it will be the rgb() corresponding one. The transparent keyword maps to rgba(0,0,0,0).
Animatableyes, as a color
Canonical orderthe unique non-ambiguous order defined by the formal grammar


border-left-color: red;
border-left-color: rgb(255, 255, 0);
border-left-color: hsla(100%, 50%, 25%, 0.75);
border-left-color: transparent;
border-left-color: #ffbb00;
border-left-color: currentColor;

border-left-color: inherit;


Is a <color> CSS value describing the color of the left border.
Is a keyword denoting the color of the bottom border of the parent's element (which may be different from the border-left-color default value)

Formal syntax


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

<rgb()> = rgb( <rgb-component>#{3} )
<rgba()> = rgba( <rgb-component>#{3} , <alpha-value> )
<hsl()> = hsl( <hue>, <percentage>, <percentage> )
<hsla()> = hsla( <hue>, <percentage>, <percentage>, <alpha-value> )
<named-color> = <ident>
<deprecated-system-color> = ActiveBorder | ActiveCaption | AppWorkspace | Background | ButtonFace | ButtonHighlight | ButtonShadow | ButtonText | CaptionText | GrayText | Highlight | HighlightText | InactiveBorder | InactiveCaption | InactiveCaptionText | InfoBackground | InfoText | Menu | MenuText | Scrollbar | ThreeDDarkShadow | ThreeDFace | ThreeDHighlight | ThreeDLightShadow | ThreeDShadow | Window | WindowFrame | WindowText

<rgb-component> = <integer> | <percentage>
<alpha-value> = <number>
<hue> = <number>


A simple div with a border

HTML Content

<div class="mybox">
    <p>This is a box with a border around it.
       Note which side of the box is
       <span class="redtext">red</span>.</p>

CSS Content

.mybox {
    border: solid 0.3em gold;
    border-left-color: red;
    width: auto;
.redtext {
    color: red;



Specification Status Comment
CSS Backgrounds and Borders Module Level 3
The definition of 'border-left-color' in that specification.
Candidate Recommendation No significant changes, though the transparent keyword, now included in <color> which has been extended, has been formally removed.
CSS Level 2 (Revision 1)
The definition of 'border-left-color' in that specification.
Recommendation Initial definition

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 1.0 1.0 (1.7 or earlier)[1] 4 3.5 1.0 (85)
Feature Android Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile
Basic support 1.0 1.0 (1.0)[1] 6.5 11 1.0

[1] Gecko-based browsers like Firefox also supports the non-standard -moz-border-left-colors CSS properties that sets the left border to multiple colors.

See also

Document Tags and Contributors

 Last updated by: Krenair,