Cinnabar

v19 · published

Warm hospitality made visible - airy whites, soft shadows, one coral light.

warmwelcomingroundedairy

A re-reading of the world's hospitality marketplace. Where the source spends almost no color, this system follows suit: a white-first canvas with near-black text and a single coral reserved for the one action that matters. The personality lives in geometry - generously rounded corners on everything, from pill-shaped search fields to soft listing cards - and in shadows so light they read as a gentle lift off the page rather than a drop. Type is a friendly humanist sans at calm sizes. The result feels less like a screen and more like an open, welcoming room.

Fork it into your own →Open the playground →

re-imagined from https://airbnb.com

Use in your project

Pull this design system into any project - it follows the system's tokens, recipes and rules. Run the commands yourself, or let your coding agent set it up and build.

1 · Brings the system in

npx synthesisui@latest init --styles tailwind --ds cinnabar

2 · Turns the check and the tools on

npx synthesisui@latest connect

3 · Reopen your agent and paste this - it wires the tokens, the scope and the fonts

Set up the "cinnabar" design system in this project, so its tokens reach the browser. I already ran the install in my terminal.

1. Add these two lines to the global stylesheet this project's apps actually load (in a monorepo that is usually the shared package's, not the app's), RIGHT AFTER its `@import "tailwindcss"` line:

      @import "<path to the repo root>/_synthesisui/ds/cinnabar/tokens.css";
      @import "<path to the repo root>/_synthesisui/ds/cinnabar/theme.css";

   The position is not cosmetic. Read there, this sheet comes BEFORE any `@theme` this project declares, so wherever both name the same variable the project's own value wins. Moved to the end of the file, ours would win instead - silently.
2. Put `data-ds="cinnabar"` on a root element of each app - the element every page renders inside. Keep any classes it already has; a background they chose is a decision they made.
3. Map this project's type onto the system's family tokens: import from the fonts file the install wrote and point the family variables at it, in the same stylesheet. This is the step people skip, and without it the pages render in the framework's default face.
4. Run: npx synthesisui@latest doctor
   If npm answers `ETARGET` or `No matching version found`, a release is still propagating - wait a minute and run it again, or pin the version the registry does have (`npm view synthesisui version`).
   If it says "no system installed", the install never happened - run `npx synthesisui@latest init --styles tailwind --ds cinnabar` and then start over from step 1.
   It must NOT say "this project does not load it yet". If it does, it names exactly which piece is still missing - fix that one and run it again.
5. Run: npx synthesisui@latest connect
   If npm answers `ETARGET` or `No matching version found`, a release is still propagating - wait a minute and run it again, or pin the version the registry does have (`npm view synthesisui version`).
   If it answers "already had it" on both lines, everything is live and you are done.
   If it WROTE either of them, then they are not live in this session, because hooks and tools are only read at startup. Stop there and tell me, in bold, on its own line: **RESTART THIS SESSION - the check is installed but not running yet.** Do not keep writing files after that; a session that cannot be checked is the state this whole setup exists to avoid.

Do not change any of my existing styles.

Ask your agent

Use the "Cinnabar" design system (slug: cinnabar) to: build the UI I describe next

First make sure it's installed: run `npx synthesisui add cinnabar` if `_synthesisui/ds/cinnabar/` isn't in the project yet.

Read these files first (highest authority first):
- _synthesisui/ds/cinnabar/rules.md - project rules for this system (if present); obey them above everything else
- _synthesisui/ds/cinnabar/philosophy.md - the mission, voice and principles (if present); let it shape every screen
- _synthesisui/ds/cinnabar/v19/GUIDE.md - how to apply the system, the recipes and the token vocabulary

Follow this contract (target framework: next):
- First check whether this refers to UI that already exists in the project. If it does, modify only what's needed and keep the rest intact and on-system. If it doesn't, build it new.
- Scope the markup with `data-ds="cinnabar"` (or rely on it at the app root).
- Style with the design system only: reuse the `.ds-*` recipe classes and the DS-backed Tailwind utilities (`bg-primary`, `text-foreground`, `p-md`, `rounded-lg`, `font-display`…). Never use raw hex/px outside the system's scale.
- Make sure `tokens.css` + `theme.css` are imported in the global CSS (see the GUIDE's "How to apply").
- Implement the behavior yourself (open/close, focus, routing) - the system ships the looks, not the JS.

Composition (make it look composed, not just correct):
- Cap page content with a max-width container and center it - this DS ships `max-w-app` for dashboards/wide UI and `max-w-prose` for text columns. Don't stretch content edge-to-edge.
- Give the page a complete, intentional layout: clear vertical rhythm, sensible density and grouped sections. Never leave a single thin row floating on an empty screen.

Deliver senior-level, production-quality code: clean structure, accessible (ARIA + keyboard), and responsive.

Paste into Claude Code, Cursor or any coding agent. From your project you can also run npx synthesisui use cinnabar "…".

Dependencies

What to install or load so the system renders at full fidelity - it ships token names and recipes, not the assets.

Web fonts - Airbnb Cereal VF
The system ships token names, not the fonts. Load them (Google Fonts, next/font or Fontsource) or type falls back to a generic family and loses the system's identity.
Icons - Lucidenpm i lucide-react
Components reference Lucide icon names. Install it (or swap in your own icon set) to render them.

Color

Primitives and roles.

Named scales forged by the synthesis; semantic roles only ever point at them.

color.sky

400#4a97d6

500#3d8fd4

700#2874b4

color.clay

400#cf4a3c

500#c0392b

color.fern

400#6aa86b

500#5c9e5e

700#487c4a

color.sand

50#ffffff

100#f7f7f7

200#f2f2f2

300#ebebeb

400#dddddd

500#b0b0b0

600#717171

700#484848

800#222222

900#111111

color.veil

500#1a1110b3

color.amber

300#ffe9b8

400#ffd57a

500#f5a623

700#976107

750#976107

color.rausch

300#ff8aa3

400#ff5a76

500#ff385c

600#e00b41

700#b80835

750#db0028

color.semantic - resolved live via CSS variables

info

{color.sky.700}

faint

{color.sand.500}

muted

{color.sand.600}

scrim

{color.veil.500}

accent

{color.amber.700}

border

{color.sand.400}

canvas

{color.sand.100}

danger

{color.clay.500}

raised

{color.sand.50}

overlay

{color.sand.200}

primary

{color.rausch.750}

success

{color.fern.700}

surface

{color.sand.50}

warning

{color.amber.750}

foreground

{color.sand.800}

color.series - categorical data-viz palette (bg-series-*)

series-1

series-2

series-3

series-4

series-5

series-6

series-7

series-8

Foundations

Shape & depth.

Corner radius, spacing rhythm and elevation - the physical feel of the system.

radius

full

spacing

3xs0.25rem

2xs0.5rem

xs0.75rem

sm1rem

md1.5rem

lg2rem

xl3rem

2xl4rem

3xl6rem

shadow

focus

Typography

The voice of the system.

Display: Airbnb Cereal VF · Body: Airbnb Cereal VF · Mono: ui-monospace

xsDesign, set free0.75rem / 1rem

smDesign, set free0.875rem / 1.43

baseDesign, set free1rem / 1.5

lgDesign, set free1.25rem / 1.4

xlDesign, set free1.375rem / 1.3

2xlDesign, set free1.75rem / 1.2

displayDesign, set free3rem / 1.08

Motion

How it breathes.

Every keyframe runs live below, dressed in the system's own colors - durations, easing curves and the interactions they power.

keyframes - 6 live

pop

rise

float

fade-in

shimmer

bounce-in

easings

smoothcubic-bezier(0.2, 0, 0, 1)

standardease

durations

base · 200msfast · 100msslow · 300msambient · 3s

interaction patterns

loopmap-pin

Map price pins float gently to feel alive.

enterbadge-in

'Guest favorite' tags bounce in once a card settles.

enterentrance

Cards rise gently into place as they appear.

pressfavorite

The wishlist heart pops when toggled - the signature delight.

loopskeleton

Image placeholders shimmer while photos load.

hoverhover-lift

Listing cards float a little higher on hover.

Components · 9

Blueprints, rendered live.

Every value below is a token reference resolved by the renderer - hover, toggle and switch tabs to feel the states. Bespoke components are rendered from their anatomy hint.

search-pill

bespoke · field

The hero search field - fully rounded, softly lifted.

card

bespoke · surface

Soft listing card - extra-round corners, the lightest resting shadow, floats on hover.

padding

A card wearing this system.

emphasis

A card wearing this system.

chip

bespoke · pill

Compact entity/filter token - a pill holding an avatar/icon, a label and an optional ds-chip-remove. Set data-active="true" for a selected filter (tints the primary); use a <button> or add ds-chip-remove for a dismissible chip.

active

MAMaya AndersenMAMaya Andersen

badge

bespoke · surface

Floating pill label - the 'Guest favorite' tag. White, softly shadowed, fully rounded.

intent

PillPillPillPillPillPill

input

bespoke · surface

Pill-shaped search field - the centerpiece. Rounded all the way, lifts a dark focus ring.

avatar

bespoke · indicator

Identity token - sized circle with initials or image.

size

MAMAMA

button

bespoke · surface

Friendly action with soft corners. Primary carries the lone coral; the rest stay quiet.

intent

select

bespoke · field

Field trigger that reveals a focus ring on interaction.

Choose an option

empty-state

bespoke · surface

Zero-data placeholder. Compose ds-empty-state with ds-empty-state-icon, ds-empty-state-title and ds-empty-state-description.

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Icons · lucide

A consistent icon set.

Icons inherit the system: color via currentColor, a standardized stroke, sizing on the scale. Lucide by default; more libraries can be enabled per system.