Google Calendar Mobile — Design System

light · consumer · high · confidence 85% · deep decode

Google Calendar Mobile — palette measured from official store listing screenshots (colors only; no font claims). Type scale shown is the platform HIG default.

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/google-calendar-mobile.

Tokens

Google Calendar Mobile's decoded design system: background #FFFFFF, text #000000, accent #2FB77A, link #2FB77A, primary #2FB77A; type scale h1 34px / h2 22px / body 17px; 8px spacing base; 12px base radius. The single interactive/action color is #2FB77A — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

Using these colors

• Action color #2FB77A — the single interactive color; only on things you click or must notice, never large fills.
• primary, accent, link, button_bg are all #2FB77A — one role, not several (the action color).
• accent #2FB77A — 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.

Typography

• h1: 34px
• h2: 22px
• body: 17px

Spacing

• base unit: 8px
• scale: 2px, 4px, 6px, 10px, 11px, 12px, 16px, 20px, 24px, 28px

Radii

• base: 12px
• button: 12px

Shadows (elevation)

• subtle: rgba(60, 64, 67, 0.3) 0px 2px 3px 0px, rgba(60, 64, 67, 0.15) 0px 6px 10px 4px
• card: rgba(54, 64, 67, 0.3) 0px 1px 2px 0px, rgba(54, 64, 67, 0.15) 0px 1px 3px 1px

Motion

Micro-interactions run at 200ms (dominant) with ease.

• durations: 200ms · 300ms · 400ms
• easings: ease · cubic-bezier(0.215, 0.61, 0.355, 1)
• animated properties: color, background-color, box-shadow, transform

Native design tokens

…and 4 more measured on the page.

Button states (measured)

• primary hover: border 1px solid rgb(138, 180, 248) · background #F1F3F4 · color #174EA6
• primary focus: outline 2px solid rgb(26, 115, 232)

Layout (measured)

• container max-width: 1440px
• common grid: 12 columns

Motion choreography (measured)

Scroll reveal: 3 elements rest at opacity 0, animate in over 0.5s ease.

Responsive (measured)

• breakpoints: 1024px
• mobile (390px): hero 36px · nav hamburger

Export: DESIGN.md

# Google Calendar Mobile — Design System

> light, consumer, high — deep decode (measured live)

Google Calendar Mobile — palette measured from official store listing screenshots (colors only; no font claims). Type scale shown is the platform HIG default.

## Colors

| Role | Value |
|------|-------|
| bg | `#FFFFFF` |
| surface | `#EFEFEF` |
| border | `#D8D8D8` |
| text | `#000000` |
| text_muted | `#606060` |
| primary | `#2FB77A` |
| accent | `#2FB77A` |
| link | `#2FB77A` |
| button_bg | `#2FB77A` |
| button_text | `#FFFFFF` |

**Using these colors**

- **Action color** `#2FB77A` — 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 `#2FB77A` — one role, not several (your action color).
- **accent** `#2FB77A` — 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): `#FFFFFF` 92.1% · `#5A84AE` 3.2% · `#C7D2D9` 2.8% · `#E6EAEB` 1.9%

## Typography


| Role | Size / weight · line-height · tracking |
|------|------------------------------------------|
| hero | 54px / 700 · lh 64px · tracking -0.5px |
| h2 | 44px / 500 · lh 54px · tracking -0.5px |
| h3 | 40px / 500 · lh 50px · tracking -0.5px |
| body | 18px / 400 · lh 28px · tracking 0.1px |
| small | 16px / 400 · lh 24px · tracking 0.2px |
| eyebrow | 11px / 600 · tracking 0.5px |

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

## Spacing
- base unit: 8px (inferred from the measured scale)
- measured scale: 2px, 4px, 6px, 10px, 11px, 12px, 16px, 20px, 24px, 28px — snap all gaps/padding to these

## Radius
- base: 12px
- button: 12px
- card: 100px

## Buttons

| Button | Fill / text | Border | Radius | Padding | Font | Shadow |
|--------|-------------|--------|--------|---------|------|--------|
| primary | `#FFFFFF` / `#1A73E8` | 1px solid rgb(218, 220, 224) | 100px | 6px 16px 6px 16px | 500 14px / 0.2px | none |
| secondary | `rgba(0, 0, 0, 0)` / `#202124` | 2px solid rgba(0, 0, 0, 0) | 100px | 10px 20px 10px 20px | 500 16px / 0.1px | none |

**States (measured, not guessed)**

- primary hover: border `1px solid rgb(138, 180, 248)` · background `#F1F3F4` · color `#174EA6`
- primary focus: outline `2px solid rgb(26, 115, 232)`
- transition: `background-color 0.2s ease`

## Shadows (elevation)
- subtle: `rgba(60, 64, 67, 0.3) 0px 2px 3px 0px, rgba(60, 64, 67, 0.15) 0px 6px 10px 4px`
- card: `rgba(54, 64, 67, 0.3) 0px 1px 2px 0px, rgba(54, 64, 67, 0.15) 0px 1px 3px 1px`

## Motion
- durations: 200ms (dominant) · 300ms · 400ms
- easings: `ease` (dominant) · `cubic-bezier(0.215, 0.61, 0.355, 1)`
- animated properties: color, background-color, box-shadow, transform

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 |
|-------|-------|
| `--md-sys-color-primary` | `#1a73e8` |
| `--md-outlined-text-field-label-text-color` | `#3c4043` |
| `--md-outlined-select-text-field-label-text-color` | `#3c4043` |
| `--md-outlined-text-field-container-color` | `#fff` |
| `--md-menu-item-selected-container-color` | `#f1f3f4` |
| `--md-menu-item-hover-state-layer-color` | `#5f6368` |
| `--md-outlined-select-text-field-container-color` | `#fff` |
| `--md-outlined-text-field-error-label-text-color` | `#3c4043` |
| `--md-outlined-select-text-field-error-label-text-color` | `#3c4043` |
| `--newsletter-margin-inline-start` | `12px` |
| `--header-height` | `64px` |
| `--gws-action-bar-height` | `0px` |

_…and 2 more measured on the page._

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

## Layout (measured)
- container max 1440px · common grid: 12-col
- nav: 0px fixed · bg #FFFFFF

| Section (y) | Height | Cols | Gap | Pad y | Split |
|---|---|---|---|---|---|
| 88 | 504 | — | — | 0/0 | — |
| 844 | 385 | 12 | 24 | 0/0 | — |
| 1349 | 385 | 12 | 24 | 0/0 | — |
| 1854 | 434 | 12 | 24 | 0/0 | — |
| 2632 | 423 | 3 | 24 | 0/0 | — |
| 3174 | 666 | — | — | 0/0 | — |
| 3384 | 376 | 3 | 24 | 0/0 | — |
| 4010 | 500 | — | — | 0/0 | — |

## Motion choreography (measured)
- scroll reveal: 3 elements rest at opacity 0, animate in over 0.5s ease (0 revealed during the drive).

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

## Components (measured)
- link: #1A73E8 · underline — hover #174EA6

## Responsive (measured)
- breakpoints: 1024px
- 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/google-calendar-mobile

Export: Tailwind v4 (@theme)

@theme {
  /* action color #2FB77A — the one interactive color; buttons/links/emphasis only, never large fills. */
  --color-bg: #FFFFFF;
  --color-surface: #EFEFEF;
  --color-border: #D8D8D8;
  --color-text: #000000;
  --color-text-muted: #606060;
  --color-primary: #2FB77A;  /* primary brand / action color. */
  --color-accent: #2FB77A;  /* 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: #2FB77A;  /* inline text links — shares the action color. */
  --color-button-bg: #2FB77A;  /* primary-button fill — the main call-to-action color. */
  --color-button-text: #FFFFFF;
  /* measured weights: 400, 500, 600, 700 — use these, not 400/600 */
  --text-hero: 54px; --font-weight-hero: 700; --leading-hero: 64px; --tracking-hero: -0.5px;
  --text-h2: 44px; --font-weight-h2: 500; --leading-h2: 54px; --tracking-h2: -0.5px;
  --text-h3: 40px; --font-weight-h3: 500; --leading-h3: 50px; --tracking-h3: -0.5px;
  --text-body: 18px; --font-weight-body: 400; --leading-body: 28px; --tracking-body: 0.1px;
  --text-small: 16px; --font-weight-small: 400; --leading-small: 24px; --tracking-small: 0.2px;
  --text-eyebrow: 11px; --font-weight-eyebrow: 600; --tracking-eyebrow: 0.5px;
  --radius-base: 12px;
  --radius-button: 12px;
  --radius-card: 100px;
  --shadow-card: rgba(54, 64, 67, 0.3) 0px 1px 2px 0px, rgba(54, 64, 67, 0.15) 0px 1px 3px 1px;
  --shadow-subtle: rgba(60, 64, 67, 0.3) 0px 2px 3px 0px, rgba(60, 64, 67, 0.15) 0px 6px 10px 4px;
  --color-btn-hover: #F1F3F4;  /* measured primary hover fill */
  --outline-focus: 2px solid rgb(26, 115, 232);  /* measured focus ring */
  --ease-brand: ease;
  --duration-fast: 200ms;  /* use: duration-[var(--duration-fast)] */
  --duration-base: 300ms;
  --duration-slow: 400ms;
  --spacing: 8px;  /* measured base — drives the p-*/gap-* scale. steps seen on the page: 2, 4, 6, 10, 11, 12, 16, 20, 24, 28px */
}

Export: CSS variables

:root {
  /* action color #2FB77A — the one interactive color; buttons/links/emphasis only, never large fills. */
  --bg: #FFFFFF;
  --surface: #EFEFEF;
  --border: #D8D8D8;
  --text: #000000;
  --text-muted: #606060;
  --primary: #2FB77A;  /* primary brand / action color. */
  --accent: #2FB77A;  /* 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: #2FB77A;  /* inline text links — shares the action color. */
  --button-bg: #2FB77A;  /* primary-button fill — the main call-to-action color. */
  --button-text: #FFFFFF;
  --text-hero: 54px; --weight-hero: 700; --leading-hero: 64px; --tracking-hero: -0.5px;
  --text-h2: 44px; --weight-h2: 500; --leading-h2: 54px; --tracking-h2: -0.5px;
  --text-h3: 40px; --weight-h3: 500; --leading-h3: 50px; --tracking-h3: -0.5px;
  --text-body: 18px; --weight-body: 400; --leading-body: 28px; --tracking-body: 0.1px;
  --text-small: 16px; --weight-small: 400; --leading-small: 24px; --tracking-small: 0.2px;
  --text-eyebrow: 11px; --weight-eyebrow: 600; --tracking-eyebrow: 0.5px;
  --radius: 12px;
  --radius-button: 12px;
  --radius-card: 100px;
  --shadow-card: rgba(54, 64, 67, 0.3) 0px 1px 2px 0px, rgba(54, 64, 67, 0.15) 0px 1px 3px 1px;
  --shadow-subtle: rgba(60, 64, 67, 0.3) 0px 2px 3px 0px, rgba(60, 64, 67, 0.15) 0px 6px 10px 4px;
  --btn-bg-hover: #F1F3F4;
  --focus-ring: 2px solid rgb(26, 115, 232);
  --ease: ease;
  --duration-fast: 200ms;
  --duration-base: 300ms;
  --duration-slow: 400ms;
}

/* their own tokens, verbatim from the site's :root */
:root {
  --md-sys-color-primary: #1a73e8;
  --md-outlined-text-field-label-text-color: #3c4043;
  --md-outlined-select-text-field-label-text-color: #3c4043;
  --md-outlined-text-field-container-color: #fff;
  --md-menu-item-selected-container-color: #f1f3f4;
  --md-menu-item-hover-state-layer-color: #5f6368;
  --md-outlined-select-text-field-container-color: #fff;
  --md-outlined-text-field-error-label-text-color: #3c4043;
  --md-outlined-select-text-field-error-label-text-color: #3c4043;
  --newsletter-margin-inline-start: 12px;
  --header-height: 64px;
  --gws-action-bar-height: 0px;
}