theme-color

The theme-color value for the name attribute of the <meta> element indicates a suggested color that user agents should use to customize the display of the page or of the surrounding user interface. If specified, the content attribute must contain a valid CSS <color>.

Example

<meta name="theme-color" content="#4285f4">

The following image shows the effect that the <meta> element above will have on a document displayed in Chrome running on an Android mobile device.

Image showing the effect of using theme-color
Image credit: from Icons & Browser Colors, created and shared by Google and used according to terms described in the Creative Commons 4.0 Attribution License.

Specifications

Specification
HTML Standard (HTML)
# meta-theme-color

Browser compatibility

BCD tables only load in the browser