Warningsign

The warning sign icon represents a warning or alert. It is often used to indicate caution or danger. The icon is commonly used in software or applications to represent a warning or error message. The warning sign icon is a part of the Firefox OS Emoji library, which provides a set of colorful and expressive icons for use in various applications.

In real-world applications, the warning sign icon may appear in software or applications to indicate a warning or error. For example, a web browser might use the warning sign icon to indicate a security warning. A software application might use the icon to alert users to a potential error.

From a UX perspective, the warning sign icon communicates a sense of caution or danger. It helps users understand that a situation requires attention or action. The icon can be used to create a sense of urgency and importance in an application or website.

Warningsign is one of 1,034 icons in Firefox OS Emoji, made by Mozilla and released under Apache 2.0. 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 WarningsignIcon to components/icons/fxemoji-warningsign.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 WarningsignIcon 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 Warningsign icon, or any of 1,034 Firefox OS Emoji icons, and install it from a prompt.

It's multicolor, so it keeps its own colors.

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 keeps its own colors in light and dark mode, so check it against both backgrounds. 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="Warningsign", so screen readers say what it does.

Yes. WarningsignIcon passes every SVG prop to the svg element, so <WarningsignIcon 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 Firefox OS Emoji, Mozilla and the license.

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

1 other library draws an icon called Warningsign. 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, danger, caution and notice. Each tag page lists the icons that carry it from every library, which is the quickest way to find a match for Warningsign in another set.