# Icons

The icons in the Umbraco backoffice are based on [Lucide Icons](https://lucide.dev/) and [Simple Icons](https://simpleicons.org/). The syntax for using an icon starts with `icon-`. You can find the full list of available icons in the [All Icons article in the UI documentation](https://apidocs.umbraco.com/v18/ui/?path=/docs/umb-icons--docs).

## Example

```html
<umb-icon name="icon-umbraco" color="blue"></umb-icon>
```

## Adding custom icons

Umbraco allows you to add custom icons by [registering a new `icons` extension type](/umbraco-cms/18.latest/extend-your-project/backoffice-extensions/extending-overview/extension-types/icons.md).


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