Question 1

What does the Lock Closed Solid icon mean?

Accepted Answer

The closed lock icon in solid style represents security with a bold, completely filled design that maximizes visual impact. This variant uses solid coloring throughout the padlock shape, creating strong contrast and immediate recognition in interfaces where security or privacy features need prominent visual identification.

Question 2

Where is the Lock Closed Solid icon used?

Accepted Answer

In modern applications like featured security settings or critical access restrictions in enterprise platforms like Okta, you'll see this solid closed lock indicating maximum security, important privacy features, and critical access restrictions. It appears in security dashboards where locked state prominence emphasizes protection, or in compliance systems where secured content requires visual emphasis.

Question 3

What does the Lock Closed Solid icon tell users?

Accepted Answer

From a visual hierarchy perspective, the fully solid treatment communicates critical security states and important access restrictions while commanding attention through its bold design approach. This visual weight helps users recognize highly secured or featured private content versus standard locked items or general security features.

Question 4

Can I download the Lock Closed Solid icon as SVG or PNG?

Accepted Answer

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.

Question 5

How do I install the Lock Closed Solid icon with the shadcn CLI?

Accepted Answer

Sign in (it's free), then open Get icon, Install with shadcn CLI, and pick your package manager to copy the command. It adds the icon to components/icons/heroicons-lock-closed-solid.tsx.

Question 6

How do I use the Lock Closed Solid icon in Next.js or React?

Accepted Answer

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

Question 7

How do I use the Lock Closed Solid icon in Vue, Svelte or Angular?

Accepted Answer

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.

Question 8

Can my AI agent install it for me?

Accepted Answer

With Pro, the shadcn.io MCP server lets Claude Code, Cursor or any MCP client find the Lock Closed Solid icon, or any of 1,288 HeroIcons icons, and install it from a prompt.

Question 9

Can I use the Lock Closed Solid icon in commercial projects?

Accepted Answer

Yes. MIT 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.

Question 10

Is the Lock Closed Solid icon free?

Accepted Answer

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

Question 11

How do I change the color of the Lock Closed Solid icon?

Accepted Answer

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

Question 12

How do I change the size of the Lock Closed Solid icon?

Accepted Answer

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.

Question 13

How do I make the Lock Closed Solid icon accessible?

Accepted Answer

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="Lock Closed Solid", so screen readers say what it does.

Lock Closed Solid