MozaikaDesign system

Notion Calendar — Design System

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

Notion Calendar (née Cron) speaks the house dialect: Notion's cut of Inter at 64px/700 in soft black ('It's time.'), 16px body, and 8px-radius quiet buttons. Calendar UI in Notion's warm greys does all the showing — the acquisition absorbed the product into a design system so consistent the page needs almost no other brand.

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/notion-calendar.

Tokens

Notion Calendar's decoded design system: background #FFFFFF, text #0D0D0D, accent #191918, link #2383E2, primary #FFF5E0; type scale h1 64px / h2 42px / body 16px; 4px spacing base; 6px base radius. The single interactive/action color is #191918 — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

RoleValue
bg#FFFFFF
surface#F0F0F0
border#DADADA
text#0D0D0D
text_muted#686868
primary#FFF5E0
accent#191918
link#2383E2
secondary#0075DE
button_bg#191918
button_text#FFFFFF

Using these colors

Typography

Spacing

Radii

Shadows (elevation)

Motion

Micro-interactions run at 200ms (dominant) with cubic-bezier(0.42, 0, 1, 1).

Native design tokens

TokenValue
--border-color-regularrgb(0 0 0/8%)
--text-color-extra-lightrgb(0 0 0/20%)
--text-color-lightrgb(0 0 0/40%)
--text-color-mediumrgb(0 0 0/60%)
--text-color-darkrgb(17 17 17/100%)
--text-color-regularrgb(4 4 4/100%)
--color-gray-100#f9f9f8
--color-gray-200#f6f5f4
--color-gray-300#dfdcd9
--color-gray-400#a39e98

…and 110 more measured on the page.

Button states (measured)

Layout (measured)

Motion choreography (measured)

Load order: div.Agent_agentMarkEnterWrap×4 → div.Agent_agentTaskEnterWrap×6 → div.Agent_agentGraphicEnterW×6 → div.Marquee_marquee__jTJ0o → span.homepageHeroTeamsAndAgen×2 → div.dropdownFooterContent_fo

Responsive (measured)

Per-section tokens (9)

Export: DESIGN.md

# Notion Calendar — Design System

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

Notion Calendar (née Cron) speaks the house dialect: Notion's cut of Inter at 64px/700 in soft black ('It's time.'), 16px body, and 8px-radius quiet buttons. Calendar UI in Notion's warm greys does all the showing — the acquisition absorbed the product into a design system so consistent the page needs almost no other brand.

## Colors

| Role | Value |
|------|-------|
| bg | `#FFFFFF` |
| surface | `#F0F0F0` |
| border | `#DADADA` |
| text | `#0D0D0D` |
| text_muted | `#686868` |
| primary | `#FFF5E0` |
| accent | `#191918` |
| link | `#2383E2` |
| secondary | `#0075DE` |
| button_bg | `#191918` |
| button_text | `#FFFFFF` |

**Using these colors**

- **Action color** `#191918` — 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 `#191918` — one role, not several (your action color).
- **accent** `#191918` — 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** `#FFF5E0` — a neutral UI color (chips, tags, icon fills, chrome), not the action color (action = #191918).
- **link** `#2383E2` — inline text links and link-styled controls.
- **secondary** `#0075DE` — optional secondary accent — LOW decode confidence; use rarely (a status color or a single decorative moment) or omit it entirely. Prefer one accent unless the reference clearly shows two.
- **Page coverage** (full-page screenshot pixels): `#FFFFFF` 88.7% · `#AAB3BB` 3.1% · `#0E0D0D` 3% · `#ECDBBC` 2.8%

## Typography

- Heading: **Notion Inter** _(free fallback: Newsreader)_
- Body: **Notion Inter** _(free fallback: Newsreader)_

| Role | Size / weight · line-height · tracking |
|------|------------------------------------------|
| hero | 96px / 600 · lh 100px · tracking -4.6px |
| h2 | 72px / 500 · lh 87px · tracking -2px |
| h3 | 54px / 700 · lh 56px · tracking -1.88px |
| body | 16px / 700 · lh 24px |
| small | 14px / 500 · lh 20px |

- Weight ladder: 400 · 500 · 550 · 650 · 700 — use these exact measured weights, not the 400/600 defaults.

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

## Spacing
- base unit: 4px (inferred from the measured scale)
- measured scale: 3px, 4px, 5px, 6px, 8px, 10px, 12px, 14px, 15px, 16px — snap all gaps/padding to these
- section rhythm: 64px top/bottom padding per section (measured)

## Radius
- base: 6px
- button: 8px
- card: 8px
- pill: 9999px
- sharp: 3px

## Buttons

| Button | Fill / text | Border | Radius | Padding | Font | Shadow |
|--------|-------------|--------|--------|---------|------|--------|
| primary | `#0075DE` / `#FFFFFF` | 1px solid rgba(255, 255, 255, 0) | 8px | 4px 14px 4px 14px | 500 16px | none |
| secondary | `#E6F3FE` / `#005BAB` | 1px solid rgba(255, 255, 255, 0) | 8px | 6px 15px 6px 15px | 500 16px | none |

**States (measured, not guessed)**

- primary hover: background `#005BAB`
- primary focus: background `#005BAB` · outline `2px solid rgb(0, 117, 222)`
- secondary hover: background `#F2F9FF`

## Shadows (elevation)
- overlay: `rgba(66, 35, 3, 0.03) 0px 8px 12px 0px, rgba(66, 35, 3, 0.03) 0px 2px 6px 0px`

## Motion
- durations: 200ms (dominant) · 150ms · 600ms
- easings: `cubic-bezier(0.42, 0, 1, 1)` (dominant) · `ease-in-out`
- animated properties: background-color, color, text-decoration-color, -webkit-text-decoration-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 |
|-------|-------|
| `--border-color-regular` | `rgb(0 0 0/8%)` |
| `--text-color-extra-light` | `rgb(0 0 0/20%)` |
| `--text-color-light` | `rgb(0 0 0/40%)` |
| `--text-color-medium` | `rgb(0 0 0/60%)` |
| `--text-color-dark` | `rgb(17 17 17/100%)` |
| `--text-color-regular` | `rgb(4 4 4/100%)` |
| `--color-gray-100` | `#f9f9f8` |
| `--color-gray-200` | `#f6f5f4` |
| `--color-gray-300` | `#dfdcd9` |
| `--color-gray-400` | `#a39e98` |
| `--color-gray-500` | `#78736f` |
| `--color-gray-600` | `#615d59` |

_…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 1230px · common grid: 2-col
- nav: 64px relative · bg #FFFFFF

| Section (y) | Height | Cols | Gap | Pad y | Split |
|---|---|---|---|---|---|
| 64 | 1433 | 11 | — | 0/16 | 2/4/8/2/33/2/33/2/8/4/2 |
| 1649 | 559 | 2 | — | 0/0 | 39/61 |
| 2239 | 182 | 5 | 8 | 0/0 | — |
| 2501 | 1037 | 2 | 24 | 0/0 | — |
| 3619 | 1037 | 2 | 24 | 0/0 | — |

## Motion choreography (measured)
Load order: `div.Agent_agentMarkEnterWrap`×4 @0ms → `div.Agent_agentTaskEnterWrap`×6 @0ms → `div.Agent_agentGraphicEnterW`×6 @0ms → `div.Marquee_marquee__jTJ0o` @0ms → `span.homepageHeroTeamsAndAgen`×2 @316ms → `div.dropdownFooterContent_fo` @653ms
- `div.Agent_agentGraphicEnterW` ×5 — transform rotate(-10deg)→rotate(0deg) · translate -20% 0%→0px — 600ms ease-in-out
- `span.graphic_graphic__jmWdv` ×5 — transform rotate(0deg)→rotate(30deg) · translate 0px→40% -10% — 1000ms
- `div.Agent_agentMarkEnterWrap` ×3 — transform rotate(-15deg)→rotate(-15deg) · translate -130% 50%→-110% 50% — 600ms ease-in-out
- `svg.Agent_agentMark__5Te9W` ×3 — transform rotate(0deg)→rotate(40deg) · translate 0px→30% -90% — 1000ms
- `div.Agent_agentTaskEnterWrap` ×4 — transform rotate(-10deg)→rotate(15deg) · translate 0% -10%→90% -10% — 600ms ease-in-out
- `div.Agent_agentTask__J7mO1` ×4 — transform rotate(0deg)→rotate(25deg) · translate 0px→55% -5% — 1000ms

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

## Responsive (measured)
- breakpoints: 400px · 440px · 600px · 712px · 840px · 1080px
- mobile (390px): hero 42px · 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/notion-calendar

Export: Tailwind v4 (@theme)

@theme {
  /* action color #191918 — the one interactive color; buttons/links/emphasis only, never large fills. */
  --color-bg: #FFFFFF;
  --color-surface: #F0F0F0;
  --color-border: #DADADA;
  --color-text: #0D0D0D;
  --color-text-muted: #686868;
  --color-primary: #FFF5E0;  /* a neutral UI color (chips, tags, icon fills, chrome), not the action color (action = #191918). */
  --color-accent: #191918;  /* 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: #2383E2;  /* inline text links and link-styled controls. */
  --color-secondary: #0075DE;  /* optional secondary accent — LOW decode confidence; use rarely (a status color or a single decorative moment) or omit it entirely. Prefer one accent unless the reference clearly shows two. */
  --color-button-bg: #191918;  /* primary-button fill — the main call-to-action color. */
  --color-button-text: #FFFFFF;
  /* fonts: Notion Inter may be proprietary — safe free fallback: Newsreader (Google Fonts). */
  --font-heading: "Notion Inter", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "Notion Inter", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  /* measured weights: 400, 500, 550, 650, 700 — use these, not 400/600 */
  --text-hero: 96px; --font-weight-hero: 600; --leading-hero: 100px; --tracking-hero: -4.6px;
  --text-h2: 72px; --font-weight-h2: 500; --leading-h2: 87px; --tracking-h2: -2px;
  --text-h3: 54px; --font-weight-h3: 700; --leading-h3: 56px; --tracking-h3: -1.88px;
  --text-body: 16px; --font-weight-body: 700; --leading-body: 24px;
  --text-small: 14px; --font-weight-small: 500; --leading-small: 20px;
  --radius-base: 6px;
  --radius-button: 8px;
  --radius-card: 8px;
  --radius-pill: 9999px;
  --radius-sharp: 3px;
  --shadow-overlay: rgba(66, 35, 3, 0.03) 0px 8px 12px 0px, rgba(66, 35, 3, 0.03) 0px 2px 6px 0px;
  --color-btn-hover: #005BAB;  /* measured primary hover fill */
  --outline-focus: 2px solid rgb(0, 117, 222);  /* measured focus ring */
  --ease-brand: cubic-bezier(0.42, 0, 1, 1);
  --duration-fast: 150ms;  /* use: duration-[var(--duration-fast)] */
  --duration-base: 200ms;
  --duration-slow: 600ms;
  --section-y: 64px;  /* per-section vertical padding (measured) */
  --spacing: 4px;  /* measured base — drives the p-*/gap-* scale. steps seen on the page: 3, 4, 5, 6, 8, 10, 12, 14, 15, 16px */
}

Export: CSS variables

:root {
  /* action color #191918 — the one interactive color; buttons/links/emphasis only, never large fills. */
  --bg: #FFFFFF;
  --surface: #F0F0F0;
  --border: #DADADA;
  --text: #0D0D0D;
  --text-muted: #686868;
  --primary: #FFF5E0;  /* a neutral UI color (chips, tags, icon fills, chrome), not the action color (action = #191918). */
  --accent: #191918;  /* 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: #2383E2;  /* inline text links and link-styled controls. */
  --secondary: #0075DE;  /* optional secondary accent — LOW decode confidence; use rarely (a status color or a single decorative moment) or omit it entirely. Prefer one accent unless the reference clearly shows two. */
  --button-bg: #191918;  /* primary-button fill — the main call-to-action color. */
  --button-text: #FFFFFF;
  --font-heading: "Notion Inter", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "Notion Inter", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --text-hero: 96px; --weight-hero: 600; --leading-hero: 100px; --tracking-hero: -4.6px;
  --text-h2: 72px; --weight-h2: 500; --leading-h2: 87px; --tracking-h2: -2px;
  --text-h3: 54px; --weight-h3: 700; --leading-h3: 56px; --tracking-h3: -1.88px;
  --text-body: 16px; --weight-body: 700; --leading-body: 24px;
  --text-small: 14px; --weight-small: 500; --leading-small: 20px;
  --radius: 6px;
  --radius-button: 8px;
  --radius-card: 8px;
  --radius-pill: 9999px;
  --radius-sharp: 3px;
  --shadow-overlay: rgba(66, 35, 3, 0.03) 0px 8px 12px 0px, rgba(66, 35, 3, 0.03) 0px 2px 6px 0px;
  --btn-bg-hover: #005BAB;
  --focus-ring: 2px solid rgb(0, 117, 222);
  --ease: cubic-bezier(0.42, 0, 1, 1);
  --duration-fast: 150ms;
  --duration-base: 200ms;
  --duration-slow: 600ms;
  --section-y: 64px;
}

/* their own tokens, verbatim from the site's :root */
:root {
  --border-color-regular: rgb(0 0 0/8%);
  --text-color-extra-light: rgb(0 0 0/20%);
  --text-color-light: rgb(0 0 0/40%);
  --text-color-medium: rgb(0 0 0/60%);
  --text-color-dark: rgb(17 17 17/100%);
  --text-color-regular: rgb(4 4 4/100%);
  --color-gray-100: #f9f9f8;
  --color-gray-200: #f6f5f4;
  --color-gray-300: #dfdcd9;
  --color-gray-400: #a39e98;
  --color-gray-500: #78736f;
  --color-gray-600: #615d59;
}
/* fonts: Notion Inter may be proprietary — safe free fallback: Newsreader (Google Fonts). */