Google Calendar Mobile — design system & UI screens

Productivity · 4 screens · calendar.google.com

A calendar day view displaying events for January 20-21 in a color-coded card layout. The interface shows a chronological event list with times, locations, and descriptive details, featuring a month selector, search, date picker, and user avatar in the header navigation. Official App Store listing screenshot.

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

Decoded design system

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

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; 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

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`

…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

Full design system, per-section tokens & DESIGN.md / Tailwind / CSS exports →