Warning Outline

The warning-outline icon represents a warning or alert signal, often used to indicate potential danger or caution. It symbolizes a need for attention or action to prevent harm. The icon is part of the Material Symbols library, designed by Google.

In real-world applications, this icon may appear in software related to safety and security, such as emergency alert systems or cybersecurity platforms like Norton Antivirus or McAfee.

From a UX perspective, the warning-outline icon communicates a sense of urgency and importance. It helps users understand that a particular situation requires attention or action to prevent harm.

Warning Outline is one of 15,862 icons in Material Symbols, made by Google and released under Apache 2.0. It is drawn on a 24 × 24 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 WarningOutlineIcon to components/icons/material-symbols-warning-outline.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 WarningOutlineIcon 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 Outline icon, or any of 15,862 Material Symbols 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 24 × 24 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 Outline", so screen readers say what it does.

Yes. WarningOutlineIcon passes every SVG prop to the svg element, so <WarningOutlineIcon 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. Apache 2.0 allows commercial use; keep the license notice when you ship the icons' source files. The full terms are in the license, linked on this page.

No visible credit is required: Apache 2.0 only asks that you keep the license notice if you ship the icons' source files. Icons installed with the shadcn CLI already start with a comment naming Material Symbols, Google and the license.

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 Outline. 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 security, warning, alert, safety, 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 Outline in another set.

Material Symbols draws many icons in several styles: Outline, Rounded and Sharp next to the default. Open the library and pick a style above the grid to see Warning Outline's siblings in it.