Gmail Mobile — decoded design system

gmail.com · light · consumer · deep decode — measured live

Gmail Mobile'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/gmail.com.

Decoded design system

Gmail Mobile's decoded design system: background #FFFFFF, text #1F1F1F, accent #EB8D87, link #0B57D0, primary #EB8D87; type scale h1 34px / h2 22px / body 17px; 4px spacing base; 12px base radius. The single interactive/action color is #0B57D0 — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

Using these colors

• Action color #0B57D0 — the single interactive color; only on things you click or must notice, never large fills.
• primary, accent are all #EB8D87 — one role, not several (the action color).
• link, button_bg are all #0B57D0 — one role, not several (the action color).
• accent #EB8D87 — accent for emphasis — keep it rare on the page.

Typography

• h1: 34px
• h2: 22px
• body: 17px

Spacing

• base unit: 4px
• scale: 3px, 8px, 9px, 12px, 14px, 16px, 24px, 36px, 48px, 108px

Radii

• base: 12px
• button: 20px

Motion

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

• durations: 150ms · 280ms
• easings: cubic-bezier(0.4, 0, 0.2, 1)
• animated properties: opacity, transform, border, box-shadow

Native design tokens

…and 26 more measured on the page.

Button states (measured)

• primary hover: box-shadow rgba(60, 64, 67, 0.3) 0px 1px 2px 0px, rgba(60, 64, 67, 0.15) 0px 1px 3px 1px

Layout (measured)

• container max-width: 1408px

Motion choreography (measured)

Load order: div.AxOyFc → div.OabDMe

Scroll reveal: 1 elements rest at opacity 0, animate in over 0.1s cubic-bezier(0.2, 0, 0, 1).

Input (measured)

height 28px · radius 4px

Themes

dark counterpart: background #0E0E0E, text #E3E3E3.

Responsive (measured)

• breakpoints: 481px · 592px · 600px · 672px · 720px · 960px
• mobile (390px): hero 32px · nav inline

Install it

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

npx shadcn add mozaika.design/r/decode/gmail.com

Or as a Meta Astryx theme — a ready defineTheme file with the measured hover/press states baked in:

curl -o src/themes/gmail.theme.ts https://mozaika.design/api/astryx/decode/gmail.com.ts

registry item · astryx theme · or query it over MCP: get_design_system("Gmail Mobile")

Export: DESIGN.md

# Gmail Mobile — Design System

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

## Colors

| Role | Value |
|------|-------|
| bg | `#FFFFFF` |
| surface | `#F1F1F1` |
| border | `#DDDDDD` |
| text | `#1F1F1F` |
| text_muted | `#747474` |
| primary | `#EB8D87` |
| accent | `#EB8D87` |
| link | `#0B57D0` |
| button_bg | `#0B57D0` |
| button_text | `#FFFFFF` |

**Using these colors**

- **Action color** `#0B57D0` — 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` are all `#EB8D87` — one role, not several.
- `link`, `button_bg` are all `#0B57D0` — one role, not several (your action color).
- **accent** `#EB8D87` — accent for emphasis — keep it rare on the page.
- **Page coverage** (full-page screenshot pixels): `#F0F4F9` 98.8% · `#B5C1D4` 1.2%

## Typography

- h1: 34px
- h2: 22px
- body: 17px

## Spacing
- base unit: 4px (inferred from the measured scale)
- measured scale: 3px, 8px, 9px, 12px, 14px, 16px, 24px, 36px, 48px, 108px — snap all gaps/padding to these

## Radius
- base: 12px
- button: 20px

## Buttons

| Button | Fill / text | Border | Radius | Padding | Font | Shadow |
|--------|-------------|--------|--------|---------|------|--------|
| primary | `#0B57D0` / `#FFFFFF` | none | 20px | 0px 24px 0px 24px | 500 14px | none |
| secondary | `rgba(0, 0, 0, 0)` / `#0B57D0` | none | 20px | 0px 16px 0px 16px | 500 14px | none |

**States (measured, not guessed)**

- primary hover: box-shadow `rgba(60, 64, 67, 0.3) 0px 1px 2px 0px, rgba(60, 64, 67, 0.15) 0px 1px 3px 1px`
- transition: `border 0.28s cubic-bezier(0.4, 0, 0.2, 1)`

## Motion
- durations: 150ms (dominant) · 280ms
- easings: `cubic-bezier(0.4, 0, 0.2, 1)` (dominant)
- animated properties: opacity, transform, border, box-shadow

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 |
|-------|-------|
| `--gm3-sys-color-background` | `rgb(255 255 255 / 1)` |
| `--gm3-sys-color-error` | `rgb(179 38 30 / 1)` |
| `--gm3-sys-color-error-container` | `rgb(249 222 220 / 1)` |
| `--gm3-sys-color-inverse-on-surface` | `rgb(242 242 242 / 1)` |
| `--gm3-sys-color-inverse-primary` | `rgb(168 199 250 / 1)` |
| `--gm3-sys-color-inverse-surface` | `rgb(48 48 48 / 1)` |
| `--gm3-sys-color-on-background` | `rgb(31 31 31 / 1)` |
| `--gm3-sys-color-on-error` | `rgb(255 255 255 / 1)` |
| `--gm3-sys-color-on-error-container` | `rgb(140 29 24 / 1)` |
| `--gm3-sys-color-on-primary` | `rgb(255 255 255 / 1)` |
| `--gm3-sys-color-on-primary-container` | `rgb(8 66 160 / 1)` |
| `--gm3-sys-color-on-secondary` | `rgb(255 255 255 / 1)` |

_…and 24 more measured on the page._

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

## Layout (measured)
- container max 1408px

## Motion choreography (measured)
Load order: `div.AxOyFc` @0ms → `div.OabDMe` @1ms
- scroll reveal: 1 elements rest at opacity 0, animate in over 0.1s cubic-bezier(0.2, 0, 0, 1) (0 revealed during the drive).

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

## Components (measured)
- input: h 28px · r 4px · bg rgba(0, 0, 0, 0) · placeholder #1F1F1F
- link: #0B57D0 · no underline

## Themes (both measured)
- dark counterpart: bg `#0E0E0E` · text `#E3E3E3`

## Responsive (measured)
- breakpoints: 481px · 592px · 600px · 672px · 720px · 960px
- mobile (390px): hero 32px · body 14px · nav: inline

## 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/decode/gmail.com

Is this spec still current?

Gmail Mobile is re-measured from its live DOM every night — 16 measurements on record so far. The dated verdict (held, changed, or never settles) is on its drift ledger.

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