Threads Mobile — Design System

Name: Threads Mobile design system
Creator: Mozaika
Keywords: design system, design tokens, Threads Mobile, light

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

Threads 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/threads-mobile.

Tokens

Threads Mobile's decoded design system: background #FFFFFF, text #000000, accent #FFEC00, link #FFEC00, primary #FFEC00; type scale h1 34px / h2 22px / body 17px; 4px spacing base; 12px base radius. The single interactive/action color is #FFEC00 — 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	`#FFEC00`
accent	`#FFEC00`
link	`#FFEC00`
button_bg	`#FFEC00`
button_text	`#FFFFFF`

Using these colors

Action color #FFEC00 — the single interactive color; only on things you click or must notice, never large fills.
primary, accent, link, button_bg are all #FFEC00 — one role, not several (the action color).
accent #FFEC00 — 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: 4px
scale: 2px, 4px, 6px, 8px, 12px, 15px, 16px, 20px, 24px, 32px

Radii

base: 12px
button: 12px

Shadows (elevation)

card: rgba(0, 0, 0, 0.04) 0px 0px 12px 0px
overlay: rgba(0, 0, 0, 0.08) 0px 10px 21px 0px

Motion

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

durations: 200ms · 300ms · 150ms
easings: ease · ease-in-out
animated properties: none

Native design tokens

Token	Value
`--fds-black`	`#000000`
`--fds-black-alpha-05`	`rgba(0, 0, 0, 0.05)`
`--fds-black-alpha-10`	`rgba(0, 0, 0, 0.1)`
`--fds-black-alpha-15`	`rgba(0, 0, 0, 0.15)`
`--fds-black-alpha-20`	`rgba(0, 0, 0, 0.2)`
`--fds-black-alpha-30`	`rgba(0, 0, 0, 0.3)`
`--fds-black-alpha-40`	`rgba(0, 0, 0, 0.4)`
`--fds-black-alpha-50`	`rgba(0, 0, 0, 0.5)`
`--fds-black-alpha-60`	`rgba(0, 0, 0, 0.6)`
`--fds-black-alpha-80`	`rgba(0, 0, 0, 0.8)`

…and 110 more measured on the page.

Button states (measured)

primary focus: box-shadow rgb(255, 255, 255) 0px 0px 0px 2px, rgb(24, 119, 242) 0px 0px 0px 4px

Motion choreography (measured)

Load order: div.x4afe7t → div.x1a2a7pz×8 → ::view-transition-group×2

Overlay recipe (measured)

dialog panel: rgba(0, 0, 0, 0) · radius 0px

Themes

dark counterpart: background #0A0A0A, text #F3F5F7.

Responsive (measured)

mobile (390px): nav inline

Export: DESIGN.md

# Threads Mobile — Design System

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

Threads 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 | `#FFEC00` |
| accent | `#FFEC00` |
| link | `#FFEC00` |
| button_bg | `#FFEC00` |
| button_text | `#FFFFFF` |

**Using these colors**

- **Action color** `#FFEC00` — 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 `#FFEC00` — one role, not several (your action color).
- **accent** `#FFEC00` — 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` 97.6% · `#C8C8C8` 2.4%

## Typography


| Role | Size / weight · line-height · tracking |
|------|------------------------------------------|
| hero | 20px / 700 · lh 25px |
| body | 15px / 600 · lh 21px |
| small | 13px / 400 · lh 18px |

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

## Spacing
- base unit: 4px (inferred from the measured scale)
- measured scale: 2px, 4px, 6px, 8px, 12px, 15px, 16px, 20px, 24px, 32px — snap all gaps/padding to these

## Radius
- base: 12px
- button: 12px
- card: 8px
- pill: 9999px
- sharp: 1px

## Buttons

| Button | Fill / text | Border | Radius | Padding | Font | Shadow |
|--------|-------------|--------|--------|---------|------|--------|
| primary | `#000000` / `#FFFFFF` | 1px solid rgb(0, 0, 0) | 10px | 0px 16px 0px 16px | 600 15px | none |
| secondary | `rgba(0, 0, 0, 0)` / `#000000` | 1px solid rgba(0, 0, 0, 0.15) | 10px | 0px 16px 0px 16px | 600 15px | none |

**States (measured, not guessed)**

- primary focus: box-shadow `rgb(255, 255, 255) 0px 0px 0px 2px, rgb(24, 119, 242) 0px 0px 0px 4px`
- transition: `none 0.1s ease-in-out`

## Shadows (elevation)
- card: `rgba(0, 0, 0, 0.04) 0px 0px 12px 0px`
- overlay: `rgba(0, 0, 0, 0.08) 0px 10px 21px 0px`

## Motion
- durations: 200ms (dominant) · 300ms · 150ms
- easings: `ease` (dominant) · `ease-in-out`
- animated properties: none

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 |
|-------|-------|
| `--fds-black` | `#000000` |
| `--fds-black-alpha-05` | `rgba(0, 0, 0, 0.05)` |
| `--fds-black-alpha-10` | `rgba(0, 0, 0, 0.1)` |
| `--fds-black-alpha-15` | `rgba(0, 0, 0, 0.15)` |
| `--fds-black-alpha-20` | `rgba(0, 0, 0, 0.2)` |
| `--fds-black-alpha-30` | `rgba(0, 0, 0, 0.3)` |
| `--fds-black-alpha-40` | `rgba(0, 0, 0, 0.4)` |
| `--fds-black-alpha-50` | `rgba(0, 0, 0, 0.5)` |
| `--fds-black-alpha-60` | `rgba(0, 0, 0, 0.6)` |
| `--fds-black-alpha-80` | `rgba(0, 0, 0, 0.8)` |
| `--fds-blue-05` | `#ECF3FF` |
| `--fds-blue-30` | `#AAC9FF` |

_…and 108 more measured on the page._

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

## Motion choreography (measured)
Load order: `div.x4afe7t` @0ms → `div.x1a2a7pz`×8 @0ms → ``×2 @498ms
- overlay dialog (auto-opened): panel rgba(0, 0, 0, 0) · r 0px

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

## Themes (both measured)
- dark counterpart: bg `#0A0A0A` · text `#F3F5F7`
- tokens that flip between modes:
  - `--fds-black`: `#000000` → `black`
  - `--fds-blue-05`: `#ECF3FF` → `black`
  - `--fds-blue-30`: `#AAC9FF` → `black`
  - `--fds-blue-40`: `#77A7FF` → `black`
  - `--fds-blue-60`: `#1877F2` → `black`
  - `--fds-blue-70`: `#2851A3` → `black`
  - `--fds-blue-80`: `#1D3C78` → `black`
  - `--fds-button-text`: `#444950` → `black`

## Responsive (measured)
- mobile (390px): body 15px · 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/ds/threads-mobile

Export: Tailwind v4 (@theme)

@theme {
  /* action color #FFEC00 — 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: #FFEC00;  /* primary brand / action color. */
  --color-accent: #FFEC00;  /* 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: #FFEC00;  /* inline text links — shares the action color. */
  --color-button-bg: #FFEC00;  /* primary-button fill — the main call-to-action color. */
  --color-button-text: #FFFFFF;
  /* measured weights: 400, 600, 700 — use these, not 400/600 */
  --text-hero: 20px; --font-weight-hero: 700; --leading-hero: 25px;
  --text-body: 15px; --font-weight-body: 600; --leading-body: 21px;
  --text-small: 13px; --font-weight-small: 400; --leading-small: 18px;
  --radius-base: 12px;
  --radius-button: 12px;
  --radius-card: 8px;
  --radius-pill: 9999px;
  --radius-sharp: 1px;
  --shadow-card: rgba(0, 0, 0, 0.04) 0px 0px 12px 0px;
  --shadow-overlay: rgba(0, 0, 0, 0.08) 0px 10px 21px 0px;
  --shadow-focus: rgb(255, 255, 255) 0px 0px 0px 2px, rgb(24, 119, 242) 0px 0px 0px 4px;  /* measured focus ring */
  --ease-brand: ease;
  --duration-fast: 150ms;  /* use: duration-[var(--duration-fast)] */
  --duration-base: 200ms;
  --duration-slow: 300ms;
  --spacing: 4px;  /* measured base — drives the p-*/gap-* scale. steps seen on the page: 2, 4, 6, 8, 12, 15, 16, 20, 24, 32px */
}

Export: CSS variables

:root {
  /* action color #FFEC00 — the one interactive color; buttons/links/emphasis only, never large fills. */
  --bg: #FFFFFF;
  --surface: #EFEFEF;
  --border: #D8D8D8;
  --text: #000000;
  --text-muted: #606060;
  --primary: #FFEC00;  /* primary brand / action color. */
  --accent: #FFEC00;  /* 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: #FFEC00;  /* inline text links — shares the action color. */
  --button-bg: #FFEC00;  /* primary-button fill — the main call-to-action color. */
  --button-text: #FFFFFF;
  --text-hero: 20px; --weight-hero: 700; --leading-hero: 25px;
  --text-body: 15px; --weight-body: 600; --leading-body: 21px;
  --text-small: 13px; --weight-small: 400; --leading-small: 18px;
  --radius: 12px;
  --radius-button: 12px;
  --radius-card: 8px;
  --radius-pill: 9999px;
  --radius-sharp: 1px;
  --shadow-card: rgba(0, 0, 0, 0.04) 0px 0px 12px 0px;
  --shadow-overlay: rgba(0, 0, 0, 0.08) 0px 10px 21px 0px;
  --focus-ring: rgb(255, 255, 255) 0px 0px 0px 2px, rgb(24, 119, 242) 0px 0px 0px 4px;
  --ease: ease;
  --duration-fast: 150ms;
  --duration-base: 200ms;
  --duration-slow: 300ms;
}

/* their own tokens, verbatim from the site's :root */
:root {
  --fds-black: #000000;
  --fds-black-alpha-05: rgba(0, 0, 0, 0.05);
  --fds-black-alpha-10: rgba(0, 0, 0, 0.1);
  --fds-black-alpha-15: rgba(0, 0, 0, 0.15);
  --fds-black-alpha-20: rgba(0, 0, 0, 0.2);
  --fds-black-alpha-30: rgba(0, 0, 0, 0.3);
  --fds-black-alpha-40: rgba(0, 0, 0, 0.4);
  --fds-black-alpha-50: rgba(0, 0, 0, 0.5);
  --fds-black-alpha-60: rgba(0, 0, 0, 0.6);
  --fds-black-alpha-80: rgba(0, 0, 0, 0.8);
  --fds-blue-05: #ECF3FF;
  --fds-blue-30: #AAC9FF;
}