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  1. Borders
  2. border-color

Borders

border-color

Utilities for controlling the color of an element's borders.

ClassStyles
border-inherit
border-color: inherit;
border-current
border-color: currentColor;
border-transparent
border-color: transparent;
border-black
border-color: var(--color-black); /* #000 */
border-white
border-color: var(--color-white); /* #fff */
border-red-50
border-color: var(--color-red-50); /* oklch(0.971 0.013 17.38) */
border-red-100
border-color: var(--color-red-100); /* oklch(0.936 0.032 17.717) */
border-red-200
border-color: var(--color-red-200); /* oklch(0.885 0.062 18.334) */
border-red-300
border-color: var(--color-red-300); /* oklch(0.808 0.114 19.571) */
border-red-400
border-color: var(--color-red-400); /* oklch(0.704 0.191 22.216) */

Examples

Basic example

Use utilities like border-rose-500 and border-lime-100 to control the border color of an element:

border-indigo-500

border-purple-500

border-sky-500

<div class="border-4 border-indigo-500 ..."></div>
<div class="border-4 border-purple-500 ..."></div>
<div class="border-4 border-sky-500 ..."></div>

Changing the opacity

Use the color opacity modifier to control the opacity of an element's border color:

border-indigo-500/100

border-indigo-500/75

border-indigo-500/50

<div class="border-4 border-indigo-500/100 ..."></div>
<div class="border-4 border-indigo-500/75 ..."></div>
<div class="border-4 border-indigo-500/50 ..."></div>

Individual sides

Use utilities like border-t-indigo-500 and border-r-lime-100 to set the border color for one side of an element:

border-t-indigo-500

border-r-indigo-500

border-b-indigo-500

border-l-indigo-500

<div class="border-4 border-indigo-200 border-t-indigo-500 ..."></div>
<div class="border-4 border-indigo-200 border-r-indigo-500 ..."></div>
<div class="border-4 border-indigo-200 border-b-indigo-500 ..."></div>
<div class="border-4 border-indigo-200 border-l-indigo-500 ..."></div>

Horizontal and vertical sides

Use utilities like border-x-indigo-500 and border-y-lime-100 to set the border color on two sides of an element at the same time:

border-x-indigo-500

border-y-indigo-500

<div class="border-4 border-indigo-200 border-x-indigo-500 ..."></div>
<div class="border-4 border-indigo-200 border-y-indigo-500 ..."></div>

Using logical properties

Use utilities like border-s-indigo-500 and border-e-lime-100 to set the border-inline-start-color and border-inline-end-color logical properties, which map to either the left or right border based on the text direction:

Left-to-right

Right-to-left

<div dir="ltr">
  <div class="border-s-indigo-500 ..."></div>
</div>
<div dir="rtl">
  <div class="border-s-indigo-500 ..."></div>
</div>

Divider between children

Use utilities like divide-indigo-500 and divide-lime-100 to control the border color between child elements:

01
02
03
<div class="grid grid-cols-3 divide-x-4 divide-indigo-500">
  <div>01</div>
  <div>02</div>
  <div>03</div>
</div>

Using a custom value

Use the border-[<value>] syntax to set the border color based on a completely custom value:

<div class="border-[#243c5a] ...">
  <!-- ... -->
</div>

For CSS variables, you can also use the border-(<custom-property>) syntax:

<div class="border-(--my-border) ...">
  <!-- ... -->
</div>

This is just a shorthand for border-[var(<custom-property>)] that adds the var() function for you automatically.

Applying on focus

Prefix a border-color utility with a variant like focus:* to only apply the utility in that state:

<input class="border-2 border-gray-700 focus:border-pink-600 ..." />

Learn more about using variants in the variants documentation.

Responsive design

Prefix a border-color utility with a breakpoint variant like md: to only apply the utility at medium screen sizes and above:

<div class="border-blue-500 md:border-green-500 ...">
  <!-- ... -->
</div>

Learn more about using variants in the variants documentation.

Customizing your theme

Use the --color-* theme variables to customize the color utilities in your project:

@theme {
  --color-regal-blue: #243c5a; 
}

Now the border-regal-blue utility can be used in your markup:

<div class="border-regal-blue">
  <!-- ... -->
</div>

Learn more about customizing your theme in the theme documentation.

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