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url: /api/formats/css/src/functions/darkBranch.md
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[pantoken-root](../../../../index.md) / [formats/css/src](../index.md) / darkBranch

# Function: darkBranch()

> **darkBranch**(`value`): `string` | `null`

Beta

The dark branch of a `light-dark()` value, or `null` when the value isn't one.

## Parameters

### value

`string`

## Returns

`string` | `null`