---
title: Enable dark theme
description: Use a Coral dark theme on a portal to improve focus, readability, and accessibility.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/platform-user-interface/service-portal/enable-dark-theme.html
release: brazil
product: Service Portal
classification: service-portal
topic_type: task
last_updated: "2026-09-10"
reading_time_minutes: 1
breadcrumb: [Create a portal theme, Defining portal styles, Configuring Service Portal, Service Portal, Configure UIs and portals, Configure user experiences]
---

# Enable dark theme

Use a Coral dark theme on a portal to improve focus, readability, and accessibility.

## Before you begin

Role required: admin

## Procedure

1.  Navigate to **All** > **Service Portal** > **Home**, then select **User Profile**.

    **Note:** As a guest user, in the top navigation menu, select **Theme** and then select **Dark mode**.

2.  In Theme Variants, choose **Dark mode**.

    For more information about theme variants, see [Create a theme variant](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/platform-user-interface/service-portal/create-theme-variant.md).

3.  Refresh the portal.


**Parent Topic:**[Create a portal theme](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/platform-user-interface/service-portal/c_CustomCSS.md)