WhatsApp Mobile — design system & UI screens

Communication · 7 screens · whatsapp.com

WhatsApp's main chat list screen with segmented filter chips (All, Unread, Groups) and a vertical stack of conversation threads with avatars, contact names, preview text, timestamps, and unread badges. Clean light layout with status bar visible. Official Google Play listing screenshot.

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/website/whatsapp-mobile.

Decoded design system

WhatsApp Mobile's decoded design system: background #FFFFFF, text #000000, accent #005B5B, link #005B5B, primary #005B5B; type scale h1 34px / h2 22px / body 17px; 8px spacing base; 12px base radius. The single interactive/action color is #005B5B — 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	`#005B5B`
accent	`#005B5B`
link	`#005B5B`
button_bg	`#005B5B`
button_text	`#FFFFFF`

Using these colors

Action color #005B5B — the single interactive color; only on things you click or must notice, never large fills.
primary, accent, link, button_bg are all #005B5B — one role, not several (the action color).
accent #005B5B — 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: 4px, 6px, 8px, 13px, 16px, 20px, 24px, 28px, 32px, 40px

Radii

base: 12px
button: 12px

Motion

Micro-interactions run at 330ms (dominant) with cubic-bezier(0.33, 0, 0, 1).

durations: 330ms · 1000ms · 500ms
easings: cubic-bezier(0.33, 0, 0, 1) · linear
animated properties: color, border-color, background-color

Button states (measured)

primary focus: outline 1px auto rgb(16, 16, 16)

Layout (measured)

container max-width: 1080px
nav: 80px fixed
common grid: 2 columns

Motion choreography (measured)

Load order: div._wauiAnimationWrapper__c×4 → div._wauiAnimationWrapper__c×4

Scroll reveal: 10 elements rest at opacity 0, translateY(120px), animate in over 1s cubic-bezier(0.33, 0, 0, 1).

Responsive (measured)

breakpoints: 520px · 768px · 1024px · 1096px · 1176px · 1200px
mobile (390px): hero 44px · nav inline

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