Strava — Design System

light · modern · high · custom · confidence 92% · deep decode

Strava trains in its custom Boathouse face at app-honest sizes (14-32px/600), athlete photography full-bleed, and 4px-radius signup cards. Segment maps and kudos feeds carry the energy — the social network for sweat keeps its type compact because the athletes' numbers are the display face.

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/strava.

Tokens

Strava's decoded design system: background #FFFFFF, text #000000, accent #FC5200, link #0060D0, primary #FC5200; type scale h1 32px / h2 14px / body 15px; 8px spacing base; 0px base radius. The single interactive/action color is #FC5200 — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

Using these colors

• Action color #FC5200 — the single interactive color; only on things you click or must notice, never large fills.
• primary, accent, button_bg are all #FC5200 — one role, not several (the action color).
• accent #FC5200 — 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 #0060D0 — inline text links and link-styled controls.

Typography

• Heading: Boathouse
• Body: Boathouse
• h1: 32px
• h2: 14px
• body: 15px

Spacing

• base unit: 8px
• scale: 4px, 6px, 10px, 12px, 15px, 20px, 24px, 26px, 32px, 40px

Radii

• base: 0px
• button: 4px

Shadows (elevation)

• overlay: rgba(0, 0, 0, 0.3) 0px 30px 70px 0px

Motion

Micro-interactions run at 150ms (dominant) with ease.

• durations: 150ms · 100ms · 300ms
• easings: ease
• animated properties: color, background-color, border-color, opacity

Native design tokens

…and 110 more measured on the page.

Button states (measured)

• primary hover: border 1px solid rgb(221, 72, 0) · background #DD4800
• primary focus: border 1px solid rgb(221, 72, 0) · background #DD4800 · outline 5px auto rgb(16, 16, 16)

Layout (measured)

• container max-width: 1600px
• nav: 73px
• common grid: 3 columns

Responsive (measured)

• breakpoints: 480px · 601px · 768px · 992px · 1200px · 1248px
• mobile (390px): hero 32px · nav inline

Per-section tokens (2)

• Hero — light · bg #FFFFFF · text #7C592A · 3 col · split
• Footer — light · bg #FAF8F4 · text #74716E · 3 col · split

Export: DESIGN.md

# Strava — Design System

> light, modern, high, custom — deep decode (measured live)

Strava trains in its custom Boathouse face at app-honest sizes (14-32px/600), athlete photography full-bleed, and 4px-radius signup cards. Segment maps and kudos feeds carry the energy — the social network for sweat keeps its type compact because the athletes' numbers are the display face.

## Colors

| Role | Value |
|------|-------|
| bg | `#FFFFFF` |
| surface | `#EFEFEF` |
| border | `#D8D8D8` |
| text | `#000000` |
| text_muted | `#606060` |
| primary | `#FC5200` |
| accent | `#FC5200` |
| link | `#0060D0` |
| button_bg | `#FC5200` |
| button_text | `#FFFFFF` |

**Using these colors**

- **Action color** `#FC5200` — 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`, `button_bg` are all `#FC5200` — one role, not several (your action color).
- **accent** `#FC5200` — 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** `#0060D0` — inline text links and link-styled controls.
- **Page coverage** (full-page screenshot pixels): `#FFFFFF` 32.1% · `#000000` 21.5% · `#BFB89F` 13.5% · `#8F7440` 12.4%

## Typography

- Heading: **Boathouse** _(free fallback: Newsreader)_
- Body: **Boathouse** _(free fallback: Newsreader)_

| Role | Size / weight · line-height · tracking |
|------|------------------------------------------|
| hero | 32px / 600 · lh 32px |
| body | 15px / 400 · lh 20px |
| small | 14px / 600 · lh 14px |

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

> **Fonts —** Boathouse may be proprietary — safe free fallback: Newsreader (Google Fonts).

## Spacing
- base unit: 8px (inferred from the measured scale)
- measured scale: 4px, 6px, 10px, 12px, 15px, 20px, 24px, 26px, 32px, 40px — snap all gaps/padding to these
- section rhythm: 180px top/bottom padding per section (measured)

## Radius
- base: 0px
- button: 4px
- card: 15px

## Buttons

| Button | Fill / text | Border | Radius | Padding | Font | Shadow |
|--------|-------------|--------|--------|---------|------|--------|
| primary | `#FC5200` / `#FFFFFF` | 1px solid rgb(252, 82, 0) | 4px | 10px 50px 10px 50px | 600 16px | none |
| secondary | `#FAFAFA` / `#21211F` | 1px solid rgb(100, 99, 94) | 4px | 10px 50px 10px 50px | 600 16px | none |

**States (measured, not guessed)**

- primary hover: border `1px solid rgb(221, 72, 0)` · background `#DD4800`
- primary focus: border `1px solid rgb(221, 72, 0)` · background `#DD4800` · outline `5px auto rgb(16, 16, 16)`
- secondary hover: border `1px solid rgb(194, 194, 190)` · background `#E0E0DE`
- transition: `background-color 0.1s ease`

## Shadows (elevation)
- overlay: `rgba(0, 0, 0, 0.3) 0px 30px 70px 0px`

## Motion
- durations: 150ms (dominant) · 100ms · 300ms
- easings: `ease` (dominant)
- animated properties: color, background-color, border-color, opacity

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 |
|-------|-------|
| `--color-socialinstagrampink` | `#d800b8` |
| `--color-extendedredr45` | `#EC5D5D` |
| `--color-socialfacebookblue` | `#0865fe` |
| `--color-extendedyellowy3` | `#FFC700` |
| `--color-secondaryg5` | `#A9E27C` |
| `--color-expandedsand` | `#f2f2ed` |
| `--color-socialinstagramred` | `#ff005e` |
| `--color-extendedvioletv2` | `#730AB4` |
| `--color-socialgoogleblue` | `#4285f4` |
| `--color-extendedgreeng7` | `#E2F5D3` |
| `--color-extendedorangeo6` | `#FDB999` |
| `--color-secondaryo6` | `#FDB999` |

_…and 108 more measured on the page._

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

## Layout (measured)
- container max 1600px · common grid: 3-col
- nav: 73px

| Section (y) | Height | Cols | Gap | Pad y | Split |
|---|---|---|---|---|---|
| 74 | 514 | 3 | — | 0/0 | — |
| 652 | 252 | — | — | 0/0 | — |

## Components (measured)
- link: #FC4C01 · no underline

## Responsive (measured)
- breakpoints: 480px · 601px · 768px · 992px · 1200px · 1248px
- 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/ds/strava

Export: Tailwind v4 (@theme)

@theme {
  /* action color #FC5200 — 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: #FC5200;  /* primary brand / action color. */
  --color-accent: #FC5200;  /* 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: #0060D0;  /* inline text links and link-styled controls. */
  --color-button-bg: #FC5200;  /* primary-button fill — the main call-to-action color. */
  --color-button-text: #FFFFFF;
  /* fonts: Boathouse may be proprietary — safe free fallback: Newsreader (Google Fonts). */
  --font-heading: "Boathouse", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "Boathouse", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  /* measured weights: 400, 600 — use these, not 400/600 */
  --text-hero: 32px; --font-weight-hero: 600; --leading-hero: 32px;
  --text-body: 15px; --font-weight-body: 400; --leading-body: 20px;
  --text-small: 14px; --font-weight-small: 600; --leading-small: 14px;
  --radius-base: 0px;
  --radius-button: 4px;
  --radius-card: 15px;
  --shadow-overlay: rgba(0, 0, 0, 0.3) 0px 30px 70px 0px;
  --color-btn-hover: #DD4800;  /* measured primary hover fill */
  --outline-focus: 5px auto rgb(16, 16, 16);  /* measured focus ring */
  --ease-brand: ease;
  --duration-fast: 100ms;  /* use: duration-[var(--duration-fast)] */
  --duration-base: 150ms;
  --duration-slow: 300ms;
  --section-y: 180px;  /* per-section vertical padding (measured) */
  --spacing: 8px;  /* measured base — drives the p-*/gap-* scale. steps seen on the page: 4, 6, 10, 12, 15, 20, 24, 26, 32, 40px */
}

Export: CSS variables

:root {
  /* action color #FC5200 — the one interactive color; buttons/links/emphasis only, never large fills. */
  --bg: #FFFFFF;
  --surface: #EFEFEF;
  --border: #D8D8D8;
  --text: #000000;
  --text-muted: #606060;
  --primary: #FC5200;  /* primary brand / action color. */
  --accent: #FC5200;  /* 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: #0060D0;  /* inline text links and link-styled controls. */
  --button-bg: #FC5200;  /* primary-button fill — the main call-to-action color. */
  --button-text: #FFFFFF;
  --font-heading: "Boathouse", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "Boathouse", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --text-hero: 32px; --weight-hero: 600; --leading-hero: 32px;
  --text-body: 15px; --weight-body: 400; --leading-body: 20px;
  --text-small: 14px; --weight-small: 600; --leading-small: 14px;
  --radius: 0px;
  --radius-button: 4px;
  --radius-card: 15px;
  --shadow-overlay: rgba(0, 0, 0, 0.3) 0px 30px 70px 0px;
  --btn-bg-hover: #DD4800;
  --focus-ring: 5px auto rgb(16, 16, 16);
  --ease: ease;
  --duration-fast: 100ms;
  --duration-base: 150ms;
  --duration-slow: 300ms;
  --section-y: 180px;
}

/* their own tokens, verbatim from the site's :root */
:root {
  --color-socialinstagrampink: #d800b8;
  --color-extendedredr45: #EC5D5D;
  --color-socialfacebookblue: #0865fe;
  --color-extendedyellowy3: #FFC700;
  --color-secondaryg5: #A9E27C;
  --color-expandedsand: #f2f2ed;
  --color-socialinstagramred: #ff005e;
  --color-extendedvioletv2: #730AB4;
  --color-socialgoogleblue: #4285f4;
  --color-extendedgreeng7: #E2F5D3;
  --color-extendedorangeo6: #FDB999;
  --color-secondaryo6: #FDB999;
}
/* fonts: Boathouse may be proprietary — safe free fallback: Newsreader (Google Fonts). */