border-left-color
Sets the color of the left border. While logical properties like 'border-inline-start-color' are often preferred for modern apps, this remains the standard way to target the physical left side specifically.
It is documented as part of the CSS Backgrounds and Borders specification.
Syntax
/* Usage Example */
.sidebar-accent {
/* Sets only the left border color */
border-left-color: #3b82f6;
border-left-style: solid;
border-left-width: 4px;
}
/* Global values */
border-left-color: inherit;
border-left-color: initial;
border-left-color: revert;
border-left-color: revert-layer;
border-left-color: unset;border-left-color Browser support
Widely available
Since
2015 96% global usage
This feature is well established and works across many devices and browser versions. It has been available across browsers since 2015.
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