Partykit — decoded design system

partykit.io · light · modern · custom · deep decode — measured live

Partykit's design system, decoded live by Mozaika: measured color roles, type scale, buttons with real hover/focus states, motion and the brand's own tokens.

Open in Mozaika →

This is a static, crawlable rendering for search & AI engines. The interactive version — filters, live decode console, copy & export — is at https://mozaika.design/decode/partykit.io.

Decoded design system

Partykit's decoded design system: background #FFFFFF, text #252525, accent #FF0F0F, link #FFFFFF, primary #9CA3AF; type scale h1 70px / h2 48px / body 16px; 8px spacing base; 0px base radius. The single interactive/action color is #FF0F0F — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

Using these colors

• Action color #FF0F0F — the single interactive color; only on things you click or must notice, never large fills.
• accent, button_bg are all #FF0F0F — one role, not several (the action color).
• accent #FF0F0F — THE accent / action color — interactive & must-notice only (buttons, links, focus, one key highlight); never large fills or backgrounds. Scarcity is what makes it read as designed.
• primary #9CA3AF — a neutral UI color (chips, tags, icon fills, chrome), not the action color (action = #FF0F0F).
• link #FFFFFF — fails contrast on the background (~1.0:1) — this is a dark UI color, NOT a readable link; use the text or action color for links (verify against the reference).

Typography

• Heading: Noto Sans
• Body: Noto Sans
• Mono: ui-monospace
• h1: 70px
• h2: 48px
• body: 16px

Spacing

• base unit: 8px
• scale: 2px, 5px, 6px, 8px, 11px, 12px, 16px, 24px, 32px, 64px

Radii

• base: 0px
• button: 0px

Shadows (elevation)

• card: rgba(0, 0, 0, 0.1) 0px 10px 50px 0px
• overlay: rgba(0, 0, 0, 0.5) 0px 30px 40px 0px

Motion

Micro-interactions run at 1500ms (dominant) with ease.

• durations: 1500ms · 150ms
• easings: ease · linear
• animated properties: color, width

Native design tokens

…and 1 more measured on the page.

Layout (measured)

• container max-width: 1100px
• common grid: 10 columns

Responsive (measured)

• breakpoints: 500px · 760px · 1100px
• mobile (390px): hero 14px · nav hamburger

Install it

Drop this measured system into any shadcn/Tailwind project in one command:

npx shadcn add mozaika.design/r/decode/partykit.io

registry item · or query it over MCP: get_design_system("Partykit")

Export: DESIGN.md

# Partykit — Design System

> light, modern, high, custom — deep decode (measured live)

## Colors

| Role | Value |
|------|-------|
| bg | `#FFFFFF` |
| surface | `#F1F1F1` |
| border | `#DEDEDE` |
| text | `#252525` |
| text_muted | `#777777` |
| primary | `#9CA3AF` |
| accent | `#FF0F0F` |
| link | `#FFFFFF` |
| button_bg | `#FF0F0F` |
| button_text | `#252525` |

**Using these colors**

- **Action color** `#FF0F0F` — the single interactive color; it appears only on things you click or must notice (buttons, key highlights), never on large fills or backgrounds.
- `accent`, `button_bg` are all `#FF0F0F` — one role, not several (your action color).
- **accent** `#FF0F0F` — THE accent / action color — interactive & must-notice only (buttons, links, focus, one key highlight); never large fills or backgrounds. Scarcity is what makes it read as designed.
- **primary** `#9CA3AF` — a neutral UI color (chips, tags, icon fills, chrome), not the action color (action = #FF0F0F).
- **link** `#FFFFFF` — fails contrast on the background (~1.0:1) — this is a dark UI color, NOT a readable link; use the text or action color for links (verify against the reference).
- **Page coverage** (full-page screenshot pixels): `#C2E5EB` 55.9% · `#F4FAFB` 18% · `#DDF0F4` 15.8% · `#575C60` 10.2%

## Typography

- Heading: **Noto Sans** _(free fallback: Newsreader)_
- Body: **Noto Sans** _(free fallback: Newsreader)_
- Mono: **ui-monospace** _(measured)_

| Role | Size / weight · line-height · tracking |
|------|------------------------------------------|
| hero | 70px / 400 · lh 74px |
| h2 | 48px / 400 · lh 48px |
| h3 | 32px / 400 · lh 38px · tracking 0.8px |
| body | 16px / 400 · lh 22px |
| small | 13px / 400 · lh 19px |

- Weight ladder: 400 — use these exact measured weights, not the 400/600 defaults.

> **Fonts —** Noto Sans may be proprietary — safe free fallback: Newsreader (Google Fonts).

## Spacing
- base unit: 8px (inferred from the measured scale)
- measured scale: 2px, 5px, 6px, 8px, 11px, 12px, 16px, 24px, 32px, 64px — snap all gaps/padding to these

## Radius
- base: 0px
- button: 0px
- card: 12px

## Buttons

| Button | Fill / text | Border | Radius | Padding | Font | Shadow |
|--------|-------------|--------|--------|---------|------|--------|
| primary | `rgba(0, 0, 0, 0)` / `#252525` | none | 0px | 0px 0px 0px 0px | 400 16px | none |

**States (measured, not guessed)**

- transition: `color 1.5s ease`

## Shadows (elevation)
- card: `rgba(0, 0, 0, 0.1) 0px 10px 50px 0px`
- overlay: `rgba(0, 0, 0, 0.5) 0px 30px 40px 0px`

## Motion
- durations: 1500ms (dominant) · 150ms
- easings: `ease` (dominant) · `linear`
- animated properties: color, width

Micro-interactions use the dominant duration + easing; nothing on the page animates slower than the longest duration above — don't invent springier motion.

## Their own tokens (verbatim from :root)

| Token | Value |
|-------|-------|
| `--color-page` | `#ffffff` |
| `--color-text` | `#252525` |
| `--color-feature-1` | `#f3f3f3` |
| `--color-feature-2` | `#ff0f0f` |
| `--color-feature-3` | `#bdc1c0` |
| `--box-radius` | `12px` |
| `--window-shadow` | `0 30px 40px rgba(0, 0, 0, .5)` |
| `--character-width` | `.333em` |
| `--atom-width` | `20rem` |
| `--demo-offset-X` | `0px` |
| `--demo-offset-Y` | `0px` |

Prefer these names when extending their system — it's the brand's actual vocabulary.

## Layout (measured)
- container max 1100px · common grid: 10-col
- nav: 0px sticky · bg #FFFFFF

| Section (y) | Height | Cols | Gap | Pad y | Split |
|---|---|---|---|---|---|
| 0 | 2566 | 10 | 16 | 0/0 | — |
| 2566 | 2597 | 10 | 16 | 0/0 | — |

## Components (measured)
- card ×6: pad 0px 0px 0px 0px · r 12px · bg #F3F3F3
  - hover: font-weight `400` · letter-spacing `normal`
- link: #FFFFFF · no underline

## Responsive (measured)
- breakpoints: 500px · 760px · 1100px
- mobile (390px): hero 14px · body 14px · nav: hamburger

## How to apply
Paste the Tailwind `@theme` (or CSS variables) as your base, then build each
section to its spec — verify every color, radius, and font against these tokens.
Hover/focus states, shadows and motion timings above are measured from the live page — match them exactly, don't re-guess them.

← All decoded design systems

An automated reading of Partykit's publicly-visible CSS (colors, fonts, spacing, motion) — not affiliated with partykit.io. No screenshots stored. Removal requests: hello@mozaika.design.