theme-color

MetaExtension theme-color

Is used to brand the address bar of a website (only on mobile devices) in a selected Hex-color.

Read more about theme-color on Googles Developer Portal or in the HTML Specification.

Usage

<meta name="theme-color" content="#317EFB">

content can be any valid Hex-color or CSS color-value.

There can also be a media-attribute added to define in which system-color-scheme which color should be used for the address bar:

<meta name="theme-color" content="#317EFB" media="(prefers-color-scheme: dark)">

theme-color is defined in the HTML Specification and is therefore a HTML Standard.

W3

In the WHATWG Wiki

Up to date: v2.3.3