Ember Field
Canvas embers drifting up from the bottom edge, flickering as they cool. The Charcoal UI signature.
- Category: Backgrounds
- Licence: Charcoal UI Pro
- Built with: React 19, Tailwind CSS 4, Motion
- Dependencies: motion, clsx, tailwind-merge
Examples
Ember Field
API reference
| Prop | Type | Default | Description |
|---|---|---|---|
density | number | 60 | Embers alive at once. |
speed | number | 1 | |
color | string | var(--ember) |
About Ember Field
Ember Field drifts glowing embers up from the bottom edge of a section, each flickering as it cools. It is the Charcoal UI signature: warmth and motion behind a headline without competing with it.
Ember Field is an animated background 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 Ember Field
- Hero sections for bold, warm brands.
- Launch and countdown pages.
- Dark-themed pricing and call-to-action sections.
- Event and gaming sites.
How it works
Embers are simple particles with rise, sway and a cooling colour curve; density sets how many live at once. It runs on a canvas capped at 2x pixel density, pauses when scrolled off screen, and reads its colours from your theme tokens so it follows dark mode.
The whole layer is decorative and aria-hidden, sits behind your content without taking pointer events it does not need, and pauses when scrolled off screen. With prefers-reduced-motion on, it holds still or settles instantly instead of animating.
Customizing Ember Field
Every prop is documented in the API reference above with its type and default. The ones you will reach for first are listed here.
Style it with className like any other element. It only uses your theme's tokens, so it follows light and dark mode without extra work.
- density (number, default 60): Embers alive at once.
- speed (number, default 1).
- color (string, default var(--ember)).
Goes well with Ember Field
Ember Field is already composed into 2 ready-made sections, so you can see it in context or install the whole block.
- Hero Ember: Hero section
- CTA Ember: CTA section
- Smoke: A slow React smoke background: blurred plumes drifting over dark sections, CSS only
- Aurora: An animated React aurora background: soft light bands drifting across a section
- Grid Beams: A React grid background with beams of light running along its lines
- Meteors: A React meteor shower background: streaks falling diagonally, CSS only
- Wave Lines: An animated React wave lines background: layered sine lines drifting sideways
Install Ember Field
npx shadcn@latest add @charcoal/ember-fieldEmber Field is part of Charcoal UI Pro. One seat unlocks all 300 Pro components, 107 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 ember-field.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 Ember Field?
- Ember Field is part of Charcoal UI Pro. Add the @charcoal registry to components.json with your access token, then run npx shadcn@latest add @charcoal/ember-field. It copies ember-field.tsx into components/ui and installs motion, clsx, tailwind-merge.
- Is Ember Field free for commercial use?
- Ember Field 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 Ember Field 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 Ember Field?
- Yes. Connect the Charcoal UI MCP server (https://charcoalui.com/mcp) to Claude Code, Cursor or any MCP client; get_component returns Ember Field's props and get_install_command returns the exact command.