MozaikaDesign system

Cartesia — Design System

light · modern · medium · tailwind · confidence 92% · deep decode

The full decoded design system for Cartesia: color roles, type scale, spacing, radii and paste-ready DESIGN.md / Tailwind / CSS exports.

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/ds/cartesia.

Tokens

Cartesia's decoded design system: background #F9F9F8, text #1E1C1A, accent #004E23, link #004E23, primary #004E23; type scale h1 36px / h2 24px / body 48px; 8px spacing base; 4px base radius. The single interactive/action color is #004E23 — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

RoleValue
bg#F9F9F8
surface#EBEBEA
border#D8D7D6
text#1E1C1A
text_muted#716F6E
primary#004E23
accent#004E23
link#004E23
button_bg#004E23
button_text#FEFEFE

Using these colors

Typography

Spacing

Radii

Motion

Micro-interactions run at 150ms (dominant) with cubic-bezier(0.4, 0, 0.2, 1).

Native design tokens

TokenValue
--cartesia-carbonoklch(23.5% 0 0)
--cartesia-canvasoklch(91.4% .011 100.8)
--cartesia-fieldoklch(96.6% .004 106.5)
--cartesia-growthoklch(82.7% .086 138.2)
--cartesia-verdantoklch(61.6% .154 148)
--cartesia-forestoklch(37.1% .099 151.4)
--cartesia-memoryoklch(74.8% .043 249.5)
--cartesia-mistoklch(90.2% .02 220.9)
--cartesia-neutral-10oklch(96.6% .004 106.5)
--cartesia-neutral-20oklch(95.1% .008 98.9)

…and 110 more measured on the page.

Button states (measured)

Layout (measured)

Motion choreography (measured)

Scroll reveal: 14 elements rest at opacity 0, animate in over 0.15s cubic-bezier(0, 0, 0.2, 1).

Responsive (measured)

Per-section tokens (10)

Export: DESIGN.md

# Cartesia — Design System

> light, modern, medium, tailwind — deep decode (measured live)

## Colors

| Role | Value |
|------|-------|
| bg | `#F9F9F8` |
| surface | `#EBEBEA` |
| border | `#D8D7D6` |
| text | `#1E1C1A` |
| text_muted | `#716F6E` |
| primary | `#004E23` |
| accent | `#004E23` |
| link | `#004E23` |
| button_bg | `#004E23` |
| button_text | `#FEFEFE` |

**Using these colors**

- **Action color** `#004E23` — the single interactive color; it appears only on things you click or must notice (buttons, key highlights), never on large fills or backgrounds.
- `primary`, `accent`, `link`, `button_bg` are all `#004E23` — one role, not several (your action color).
- **accent** `#004E23` — 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.
- **Page coverage** (full-page screenshot pixels): `#F9F9F8` 60.3% · `#004E23` 35.3% · `#B1C2B7` 4.4%

## Typography

- Heading: **PP Kyoto** _(free fallback: Newsreader)_
- Body: **ABC Diatype** _(free fallback: Space Grotesk)_

| Role | Size / weight · line-height · tracking |
|------|------------------------------------------|
| hero | 48px / 500 · lh 48px · tracking -0.48px |
| h2 | 36px / 500 · lh 45px |
| h3 | 26px / 400 · lh 34px · tracking -0.26px |
| body | 16px / 400 · lh 20px |
| small | 14px / 400 · lh 18px |

- Weight ladder: 400 · 500 · 600 — use these exact measured weights, not the 400/600 defaults.

> **Fonts —** PP Kyoto may be proprietary — safe free fallback: Newsreader (Google Fonts). ABC Diatype is proprietary — closest free match: Space Grotesk (Google). Load Space Grotesk; keep ABC Diatype first so licensed users still get it.

## Spacing
- base unit: 8px (inferred from the measured scale)
- measured scale: 6px, 8px, 10px, 12px, 16px, 20px, 24px, 32px, 40px, 48px — snap all gaps/padding to these

## Radius
- base: 4px
- button: 7px
- card: 7px
- pill: 9999px

## Buttons

| Button | Fill / text | Border | Radius | Padding | Font | Shadow |
|--------|-------------|--------|--------|---------|------|--------|
| primary | `#F9F9F8` / `#1E1C1A` | 1px solid rgba(0, 0, 0, 0) | 4px | 0px 20px 0px 20px | 500 16px / 0.14px | none |
| secondary | `oklch(0.371 0.099 151.4)` / `oklch(0.997 0 0)` | 1px solid rgba(0, 0, 0, 0) | 7.2px | 0px 10px 0px 10px | 500 16px | none |

**States (measured, not guessed)**

- primary hover: background `#E4E3DB`
- primary focus: border `1px solid oklch(0.708 0 0)`
- secondary hover: background `oklab(0.371 -0.0869203 0.0473905 / 0.9)`
- transition: `all 0.15s cubic-bezier(0.4, 0, 0.2, 1)`

## Motion
- durations: 150ms (dominant) · 300ms · 350ms
- easings: `cubic-bezier(0.4, 0, 0.2, 1)` (dominant) · `cubic-bezier(0, 0, 0.2, 1)`
- animated properties: color, background-color, border-color, outline-color

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 |
|-------|-------|
| `--cartesia-carbon` | `oklch(23.5% 0 0)` |
| `--cartesia-canvas` | `oklch(91.4% .011 100.8)` |
| `--cartesia-field` | `oklch(96.6% .004 106.5)` |
| `--cartesia-growth` | `oklch(82.7% .086 138.2)` |
| `--cartesia-verdant` | `oklch(61.6% .154 148)` |
| `--cartesia-forest` | `oklch(37.1% .099 151.4)` |
| `--cartesia-memory` | `oklch(74.8% .043 249.5)` |
| `--cartesia-mist` | `oklch(90.2% .02 220.9)` |
| `--cartesia-neutral-10` | `oklch(96.6% .004 106.5)` |
| `--cartesia-neutral-20` | `oklch(95.1% .008 98.9)` |
| `--cartesia-neutral-30` | `oklch(91.4% .011 100.8)` |
| `--cartesia-neutral-40` | `oklch(83.5% .011 76.6)` |

_…and 108 more measured on the page._

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

## Layout (measured)
- container max 1250px · common grid: 3-col
- nav: 64px sticky · border-bottom 1px solid rgb(228, 227, 219) · bg oklch(0.982 0.001 106.423)

## Motion choreography (measured)
- scroll reveal: 14 elements rest at opacity 0, animate in over 0.15s cubic-bezier(0, 0, 0.2, 1) (0 revealed during the drive).

Rebuild the timeline, not just the durations — order, delays and staggers above are the choreography.

## Components (measured)
- card ×8: pad 0px 0px 0px 0px · r 7.2px · bg oklch(0.982 0.001 106.423)
  - hover: background `oklch(0.955 0.005 95.101)` · font-weight `400` · letter-spacing `normal`
- link: oklch(0.997 0 0) · no underline

## Responsive (measured)
- mobile (390px): hero 36px · body 16px · 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.

---

> **Decoded with Mozaika** — measured live, not guessed. Full decoded design system + one-command install: mozaika.design/ds/cartesia

Export: Tailwind v4 (@theme)

@theme {
  /* action color #004E23 — the one interactive color; buttons/links/emphasis only, never large fills. */
  --color-bg: #F9F9F8;
  --color-surface: #EBEBEA;
  --color-border: #D8D7D6;
  --color-text: #1E1C1A;
  --color-text-muted: #716F6E;
  --color-primary: #004E23;  /* primary brand / action color. */
  --color-accent: #004E23;  /* 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. */
  --color-link: #004E23;  /* inline text links — shares the action color. */
  --color-button-bg: #004E23;  /* primary-button fill — the main call-to-action color. */
  --color-button-text: #FEFEFE;
  /* fonts: PP Kyoto may be proprietary — safe free fallback: Newsreader (Google Fonts). ABC Diatype is proprietary — closest free match: Space Grotesk (Google). Load Space Grotesk; keep ABC Diatype first so licensed users still get it. */
  --font-heading: "PP Kyoto", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "ABC Diatype", "Space Grotesk", system-ui, -apple-system, 'Segoe UI', sans-serif;
  /* measured weights: 400, 500, 600 — use these, not 400/600 */
  --text-hero: 48px; --font-weight-hero: 500; --leading-hero: 48px; --tracking-hero: -0.48px;
  --text-h2: 36px; --font-weight-h2: 500; --leading-h2: 45px;
  --text-h3: 26px; --font-weight-h3: 400; --leading-h3: 34px; --tracking-h3: -0.26px;
  --text-body: 16px; --font-weight-body: 400; --leading-body: 20px;
  --text-small: 14px; --font-weight-small: 400; --leading-small: 18px;
  --radius-base: 4px;
  --radius-button: 7px;
  --radius-card: 7px;
  --radius-pill: 9999px;
  --color-btn-hover: #E4E3DB;  /* measured primary hover fill */
  --ease-brand: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 150ms;  /* use: duration-[var(--duration-fast)] */
  --duration-base: 300ms;
  --duration-slow: 350ms;
  --spacing: 8px;  /* measured base — drives the p-*/gap-* scale. steps seen on the page: 6, 8, 10, 12, 16, 20, 24, 32, 40, 48px */
}

Export: CSS variables

:root {
  /* action color #004E23 — the one interactive color; buttons/links/emphasis only, never large fills. */
  --bg: #F9F9F8;
  --surface: #EBEBEA;
  --border: #D8D7D6;
  --text: #1E1C1A;
  --text-muted: #716F6E;
  --primary: #004E23;  /* primary brand / action color. */
  --accent: #004E23;  /* 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. */
  --link: #004E23;  /* inline text links — shares the action color. */
  --button-bg: #004E23;  /* primary-button fill — the main call-to-action color. */
  --button-text: #FEFEFE;
  --font-heading: "PP Kyoto", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "ABC Diatype", "Space Grotesk", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --text-hero: 48px; --weight-hero: 500; --leading-hero: 48px; --tracking-hero: -0.48px;
  --text-h2: 36px; --weight-h2: 500; --leading-h2: 45px;
  --text-h3: 26px; --weight-h3: 400; --leading-h3: 34px; --tracking-h3: -0.26px;
  --text-body: 16px; --weight-body: 400; --leading-body: 20px;
  --text-small: 14px; --weight-small: 400; --leading-small: 18px;
  --radius: 4px;
  --radius-button: 7px;
  --radius-card: 7px;
  --radius-pill: 9999px;
  --btn-bg-hover: #E4E3DB;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 150ms;
  --duration-base: 300ms;
  --duration-slow: 350ms;
}

/* their own tokens, verbatim from the site's :root */
:root {
  --cartesia-carbon: oklch(23.5% 0 0);
  --cartesia-canvas: oklch(91.4% .011 100.8);
  --cartesia-field: oklch(96.6% .004 106.5);
  --cartesia-growth: oklch(82.7% .086 138.2);
  --cartesia-verdant: oklch(61.6% .154 148);
  --cartesia-forest: oklch(37.1% .099 151.4);
  --cartesia-memory: oklch(74.8% .043 249.5);
  --cartesia-mist: oklch(90.2% .02 220.9);
  --cartesia-neutral-10: oklch(96.6% .004 106.5);
  --cartesia-neutral-20: oklch(95.1% .008 98.9);
  --cartesia-neutral-30: oklch(91.4% .011 100.8);
  --cartesia-neutral-40: oklch(83.5% .011 76.6);
}
/* fonts: PP Kyoto may be proprietary — safe free fallback: Newsreader (Google Fonts). ABC Diatype is proprietary — closest free match: Space Grotesk (Google). Load Space Grotesk; keep ABC Diatype first so licensed users still get it. */