Liquid Button
A button that fills with liquid on hover: a rolling wave rises from the bottom and the label changes colour as it floods past. Drains away on leave.
- Category: Inputs
- Licence: Charcoal UI Pro
- Built with: React 19, Tailwind CSS 4, Motion
- Dependencies: motion, clsx, tailwind-merge
Examples
Liquid Button
API reference
| Prop | Type | Default | Description |
|---|---|---|---|
children | ReactNode | — | |
color | string | "var(--color-ember)" | |
className | string | — |
About Liquid Button
Liquid Button floods with colour on hover: a rolling wave rises from the bottom and the label changes colour as the liquid passes, then it drains away when you leave.
Liquid Button is an input component for React 19, styled with Tailwind CSS 4 and animated with Motion. It drops into Next.js, Vite, Remix or Astro through the shadcn CLI as a single file you own.
When to use Liquid Button
- Primary calls to action.
- Sign-up and get started buttons.
- Drinks and food brands.
- Playful landing pages.
How it works
Two wave shapes drift at different speeds to give the surface its roll, and the fill rises on a spring. It responds to focus as well as hover, and reduced motion fills without the wave.
It is a real form control: it has an accessible name, works with the keyboard alone, shows a visible focus ring and announces its state to screen readers. With prefers-reduced-motion on, it holds still or settles instantly instead of animating.
Customizing Liquid Button
Every prop is documented in the API reference above with its type and default. The ones you will reach for first are listed here.
The Customize panel next to the preview lets you change color live, and the Code tab updates to match, so the snippet you copy already carries your values.
- color (string, default "var(--color-ember)").
Goes well with Liquid Button
These inputs pieces share its tokens and motion language, so they sit together on one page without clashing.
- Magnetic: Make any React element lean toward the pointer and spring home: a magnetic hover in one wrapper
- Color Picker: An animated React swatch colour picker with a ring that glides to the selection
- Rating: An animated React star rating with hover preview and a ripple of popping stars
- File Dropzone: An animated React file dropzone that lifts on hover and lists uploads with progress
- Like Button: An animated React like button: the heart pops, sparks burst and the count rolls
Install Liquid Button
npx shadcn@latest add @charcoal/liquid-buttonLiquid Button is part of Charcoal UI Pro. One seat unlocks all 393 Pro components, 112 landing-page sections and 100 full templates, for every personal and client project, with updates included. Add the @charcoal registry once with your access token, then the command above copies liquid-button.tsx into components/ui and installs clsx, tailwind-merge.
You own the file you install: no runtime package, no lock-in, nothing to keep in sync. Change it however your product needs.
See Charcoal UI Pro pricing · Pro setup
Frequently asked questions
- How do I install Liquid Button?
- Liquid Button is part of Charcoal UI Pro. Add the @charcoal registry to components.json with your access token, then run npx shadcn@latest add @charcoal/liquid-button. It copies liquid-button.tsx into components/ui and installs motion, clsx, tailwind-merge.
- Is Liquid Button free for commercial use?
- Liquid Button needs a Charcoal UI Pro seat, monthly or a one-time lifetime price. A seat covers unlimited personal and commercial projects, including client work, and every future Pro component.
- Does Liquid Button work with Next.js?
- Yes. It is a client component for React 19 styled with Tailwind CSS 4, so it works in the Next.js App Router and Pages Router, Vite, Remix and Astro.
- Can an AI coding agent install Liquid Button?
- Yes. Connect the Charcoal UI MCP server (https://charcoalui.com/mcp) to Claude Code, Cursor or any MCP client; get_component returns Liquid Button's props and get_install_command returns the exact command.