Trello Mobile — design system & UI screens

Productivity · 2 screens · trello.com

A bright blue task management card list showing completed items with checkmarks and attachment icons. Features a prominent drag-and-drop affordance with a curved arrow, demonstrating card reordering interaction within the "My work" collection. Official Google Play 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/trello-mobile.

Decoded design system

Trello Mobile's decoded design system: background #0065FF, text #FFFFFF, accent #0065FF, link #0065FF, primary #0065FF; type scale h1 34px / h2 22px / body 17px; 8px spacing base; 12px base radius. The single interactive/action color is #0065FF — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

Role	Value
bg	`#0065FF`
surface	`#0F6EFF`
border	`#267CFF`
text	`#FFFFFF`
text_muted	`#9EC4FF`
primary	`#0065FF`
accent	`#0065FF`
link	`#0065FF`
button_bg	`#0065FF`
button_text	`#0065FF`

Using these colors

Action color #0065FF — the single interactive color; only on things you click or must notice, never large fills.
primary, accent, link, button_bg are all #0065FF — one role, not several (the action color).
accent #0065FF — 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, 8px, 12px, 16px, 24px, 32px, 48px, 64px

Radii

base: 12px
button: 12px

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