Cinnabar

v18 · 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.

Open the playground →Fork it · design a page →

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 · Authenticate

npx synthesisui@latest login

2 · Add this design system

npx synthesisui add cinnabar --version 18

3 · Import the tokens in your global CSS

@import "_synthesisui/ds/cinnabar/tokens.css";
@import "_synthesisui/ds/cinnabar/theme.css";

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/v18/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").
- Wire 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.
Chartsnpm i recharts
Charts are themed through your series tokens, but you bring the rendering library (the gallery uses Recharts).

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

standardease

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

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 · 44

Recipes, 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.

ds-badge

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

intent

infoaccentdangerneutralsuccesswarning

ds-button

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

intent

ds-search-pill

bespoke · field

The hero search field - fully rounded, softly lifted.

ds-card

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

padding

Default

A card wearing this system.

None

A card wearing this system.

emphasis

Default

A card wearing this system.

Elevated

A card wearing this system.

ds-select

Field trigger that reveals a focus ring on interaction.

Choose an option

ds-input

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

ds-avatar

Identity token - sized circle with initials or image.

size

MAMAMA

ds-link

bespoke · surface

Inline text link, for words inside sentences - the underline is the affordance, so it reads as a link without relying on colour alone. For standalone actions use button; for navigation chrome use navbar/sidebar items.

A surface wearing this system.

ds-kicker

bespoke · text

Mono uppercase eyebrow with wide tracking - the HUD microtype that labels a section ("01 · ECOSYSTEM"). Use above headings; data-tone="accent" for the highlighted variant.

tone

defaultaccent

ds-readout

bespoke · text

HUD data readout - a mono tabular value over a micro uppercase label ("42s · AVG RENDER"). The corner instrument of cinematic scenes; pair with the count-up hook for live-feeling numbers.

ValueLabel

ds-heading

bespoke · text

Display heading on the system's type scale - the display family at a semibold weight. Pick a `size` step (defaults to 2xl) so headings stay on-scale without hand-set styles.

size

lgxl2xldisplay

ds-text

bespoke · text

Body copy on the system's type scale. Pick a `size` step and a `tone`; defaults to base body text on the foreground color - so text stays on-system without hand-set styles.

size

xssmbaselg

tone

defaultmuted

ds-stack

bespoke · surface

Vertical layout primitive - a flex column with a token `gap` (defaults to md). Stack sections/cards without hand-set flex styles.

gap

A surface wearing this system.

align

A surface wearing this system.

ds-row

bespoke · surface

Horizontal layout primitive - a centered flex row with a token `gap` (defaults to sm). Compose toolbars/inline groups without hand-set flex styles.

gap

A surface wearing this system.

justify

A surface wearing this system.

align

A surface wearing this system.