Warning

The warning icon is a visual symbol used to alert users of potential danger or caution. It typically features a bold, striking design to grab attention. This icon originates from industrial and safety signage.

In software and digital interfaces, the warning icon is often used in error messages, notifications, and alerts to signal that something has gone wrong or requires attention. It appears in platforms like Windows, macOS, and various web applications.

From a UX perspective, the warning icon communicates a sense of urgency and importance, helping users quickly identify and address issues. It can also be used to provide feedback on user actions, such as invalid input or incomplete data.

Warning is one of 562 icons in CoreUI Free, made by creativeLabs Łukasz Holeczek and released under CC BY 4.0. It is drawn on a 512 × 512 grid.

Sign in (it's free), then open Get icon, Install with shadcn CLI, and pick your package manager to copy the command. It adds WarningIcon to components/icons/cil-warning.tsx: one file, a size prop (24 by default) and every SVG prop, with no icon package.

Copy it as React (from Get icon, or the Code section): a typed WarningIcon component you paste into your project, with no package to install. Only the icons you import reach your bundle. It works in Next.js and any React app.

Open Get icon, then Copy as code, and pick Vue, Svelte, Angular, Solid or Preact; the Code section shows each one too. Every version is one self-contained component with the SVG inside, and SVG and data URL copies are there for plain HTML and CSS.

With Pro, the shadcn.io MCP server lets Claude Code, Cursor or any MCP client find the Warning icon, or any of 562 CoreUI Free icons, and install it from a prompt.

It's drawn in currentColor, so it takes the text color wherever you use it: a class like text-primary recolors it. To bake a color in, set one in Customize before you copy.

Set width and height on the component, or a class like size-6. It's drawn on a 512 × 512 grid, so it stays sharp at any size. Customize also sets the size it exports at, its padding and rotation.

Yes. It follows the text color, so with text-foreground (or any theme token) it changes with your light and dark themes. The icon is a vector, so it needs no separate dark asset.

Next to a visible label it's decoration: add aria-hidden="true" so screen readers skip it. Standing alone, as in an icon button, give the button a name instead, like aria-label="Warning", so screen readers say what it does.

Yes. WarningIcon passes every SVG prop to the svg element, so <WarningIcon aria-hidden="true" /> works, and so do role="img" with aria-label, or a title child, when it carries meaning on its own.

Yes. Open Get icon, then Download file: SVG for code or design tools like Figma; PNG, WebP or JPEG at 512px; or an ICO favicon with 16, 32 and 48px inside. Each one uses what you set in Customize.

Yes, with credit: CC BY 4.0 asks you to credit the author (creativeLabs Łukasz Holeczek) where you use the icons. The full terms are in the license, linked on this page.

Yes. CC BY 4.0 asks you to credit the author where you use the icons, for example "Icons by creativeLabs Łukasz Holeczek, CC BY 4.0" on an about or credits page.

Yes. Copying and downloading it is free, and the shadcn CLI install only needs a free account.

8 other libraries draw an icon called Warning. The Other libraries section on this page shows each one, so you can compare them and open the one that fits your style.

Its tags are warning, alert, error, signal, danger and caution. Each tag page lists the icons that carry it from every library, which is the quickest way to find a match for Warning in another set.