Buffer — Design System

light · deep decode

The full decoded design system for Buffer: color roles, type scale, spacing, radii and paste-ready DESIGN.md / Tailwind / CSS exports.

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/buffer.

Tokens

Buffer's decoded design system: background #FEFDFB, text #213130, link #FFFFFF, primary #FFFFFF; type scale h1 76px / h2 43px / body 18px; 8px spacing base; 9999px base radius. The single interactive/action color is #FFFFFF — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

Using these colors

• Action color #FFFFFF — the single interactive color; only on things you click or must notice, never large fills.
• primary, link are all #FFFFFF — one role, not several (the action color).

Typography

• Heading: Stolzl
• Body: Figtree
• h1: 76px
• h2: 43px
• body: 18px

Spacing

• base unit: 8px
• scale: 4px, 5px, 6px, 8px, 9px, 12px, 14px, 18px, 27px, 36px

Radii

• base: 9999px
• button: 9999px

Shadows (elevation)

• subtle: rgb(85, 85, 83) 0px 0px 0px 1px
• card: rgba(172, 171, 171, 0.3) 0px -1px 10px 0px
• overlay: rgba(0, 0, 0, 0.07) 13.6px 68.16px 64.32px 0px

Motion

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

• durations: 150ms · 400ms · 550ms
• easings: ease-out · cubic-bezier(0.22, 1, 0.36, 1)
• animated properties: outline-color, transform, background-color, opacity

Native design tokens

…and 110 more measured on the page.

Button states (measured)

• primary focus: outline 2px solid rgb(33, 49, 48)

Layout (measured)

• container max-width: 1496px
• nav: 73px sticky
• common grid: 2 columns

Motion choreography (measured)

Load order: svg.AssistantScene_greetingS → div.SocialProofLogosSection_ → span.AssistantScene_placehold

Input (measured)

height 61.1875px · radius 9999px · focus ring 2px solid rgb(33, 49, 48)

Responsive (measured)

• breakpoints: 352px · 425px · 440px · 576px · 768px · 1024px
• mobile (390px): hero 16px · nav hamburger

Export: DESIGN.md

# Buffer — Design System

> light — deep decode (measured live)

## Colors

| Role | Value |
|------|-------|
| bg | `#FEFDFB` |
| surface | `#F0F0EE` |
| border | `#DCDEDC` |
| text | `#213130` |
| text_muted | `#747E7D` |
| primary | `#FFFFFF` |
| link | `#FFFFFF` |
| button_bg | `rgba(0, 0, 0, 0)` |
| button_text | `#213130` |

**Using these colors**

- **Action color** `#FFFFFF` — the single interactive color; it appears only on things you click or must notice (buttons, key highlights), never on large fills or backgrounds.
- `primary`, `link` are all `#FFFFFF` — one role, not several (your action color).
- **Page coverage** (full-page screenshot pixels): `#FEFDFB` 89.1% · `#DFEED9` 6.1% · `#969B99` 4.9%

## Typography

- Heading: **Stolzl** _(free fallback: Newsreader)_
- Body: **Figtree**

| Role | Size / weight · line-height · tracking |
|------|------------------------------------------|
| hero | 76px / 400 · lh 83px · tracking -1.52px |
| h2 | 43px / 400 · lh 47px · tracking -0.85px |
| h3 | 33px / 400 · lh 33px · tracking -0.33px |
| body | 18px / 400 · lh 25px · tracking 0.12px |
| small | 17px / 400 · lh 25px |
| eyebrow | 16px / 500 · tracking 0.97px |

- Weight ladder: 400 · 500 · 700 — use these exact measured weights, not the 400/600 defaults.

> **Fonts —** Stolzl may be proprietary — safe free fallback: Newsreader (Google Fonts). Figtree — free, on Google.

## Spacing
- base unit: 8px (inferred from the measured scale)
- measured scale: 4px, 5px, 6px, 8px, 9px, 12px, 14px, 18px, 27px, 36px — snap all gaps/padding to these
- section rhythm: 72px top/bottom padding per section (measured)

## Radius
- base: 9999px
- button: 9999px
- card: 4px
- pill: 9999px

## Buttons

| Button | Fill / text | Border | Radius | Padding | Font | Shadow |
|--------|-------------|--------|--------|---------|------|--------|
| primary | `rgba(0, 0, 0, 0)` / `#213130` | none | 9999px | 0px 0px 0px 0px | 400 18px / 0.12px | none |
| secondary | `#B0EC9C` / `#213130` | 2px solid rgb(176, 236, 156) | 4px | 8px 8px 8px 8px | 500 14px / 0.12px | none |

**States (measured, not guessed)**

- primary focus: outline `2px solid rgb(33, 49, 48)`
- transition: `outline-color 0.15s ease-out`

## Shadows (elevation)
- subtle: `rgb(85, 85, 83) 0px 0px 0px 1px`
- card: `rgba(172, 171, 171, 0.3) 0px -1px 10px 0px`
- overlay: `rgba(0, 0, 0, 0.07) 13.6px 68.16px 64.32px 0px`

## Motion
- durations: 150ms (dominant) · 400ms · 550ms
- easings: `ease-out` (dominant) · `cubic-bezier(0.22, 1, 0.36, 1)`
- animated properties: outline-color, transform, background-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-purple-200` | `hsl(259 100% 91%)` |
| `--color-brand-secondary-aqua` | `hsl(174 64% 77%)` |
| `--color-orange-200` | `hsl(25 100% 85%)` |
| `--color-aqua-100` | `hsl(175 63% 88%)` |
| `--color-purple-500` | `hsl(258 100% 76%)` |
| `--color-aqua-800` | `hsl(175 51% 36%)` |
| `--color-pink-300` | `hsl(336 100% 85%)` |
| `--color-pink-500` | `hsl(335 100% 74%)` |
| `--color-orange-600` | `hsl(25 94% 61%)` |
| `--color-yellow-600` | `hsl(40 100% 63%)` |
| `--color-neutral-600` | `hsl(60 3% 54%)` |
| `--color-orange-800` | `hsl(25 72% 38%)` |

_…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 1496px · common grid: 2-col
- nav: 73px sticky · bg #FEFDFB

| Section (y) | Height | Cols | Gap | Pad y | Split |
|---|---|---|---|---|---|
| 73 | 660 | 2 | — | 0/0 | — |
| 153 | 167 | — | — | 0/0 | — |
| 884 | 1559 | 2 | 18 | 72/0 | — |
| 956 | 1487 | 2 | 18 | 0/0 | — |
| 2443 | 577 | 4 | 18 | 72/0 | — |
| 2598 | 422 | 4 | 18 | 0/0 | — |
| 3020 | 195 | 2 | 72 | 72/0 | 28/72 |
| 3215 | 860 | 2 | 54 | 72/72 | — |

## Motion choreography (measured)
Load order: `svg.AssistantScene_greetingS` @0ms → `div.SocialProofLogosSection_` @342ms → `span.AssistantScene_placehold` @342ms
- `span.AssistantScene_placehold` — opacity 0→1 · translate 0px 5.8212px→0px — 500ms cubic-bezier(0.22, 1, 0.36, 1)

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

## Components (measured)
- input: h 61.1875px · r 9999px · bg #FFFFFF · placeholder #6E6E68
  - focus ring: `2px solid rgb(33, 49, 48)` — this exact construction, don't invent your own
- card ×4: pad 0px 0px 0px 0px · r 20px · shadow rgba(23, 23, 23, 0.1) 0px 4px 12px -2px, rgba(23, 23, 23, 0.05) 0px 0px 1px 1px · bg #FEFDFB
  - hover: font-weight `400` · letter-spacing `0.12px` · transform `matrix(1, 0, 0, 1, 0, -4)`
- link: #213130 · no underline

## Responsive (measured)
- breakpoints: 352px · 425px · 440px · 576px · 768px · 1024px
- mobile (390px): hero 16px · body 16px · nav: hamburger

## 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/buffer

Export: Tailwind v4 (@theme)

@theme {
  /* action color #FFFFFF — the one interactive color; buttons/links/emphasis only, never large fills. */
  --color-bg: #FEFDFB;
  --color-surface: #F0F0EE;
  --color-border: #DCDEDC;
  --color-text: #213130;
  --color-text-muted: #747E7D;
  --color-primary: #FFFFFF;  /* primary brand / action color. */
  --color-link: #FFFFFF;  /* inline text links — shares the action color. */
  --color-button-bg: rgba(0, 0, 0, 0);
  --color-button-text: #213130;
  /* fonts: Stolzl may be proprietary — safe free fallback: Newsreader (Google Fonts). Figtree — free, on Google. */
  --font-heading: "Stolzl", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "Figtree", system-ui, -apple-system, 'Segoe UI', sans-serif;
  /* measured weights: 400, 500, 700 — use these, not 400/600 */
  --text-hero: 76px; --font-weight-hero: 400; --leading-hero: 83px; --tracking-hero: -1.52px;
  --text-h2: 43px; --font-weight-h2: 400; --leading-h2: 47px; --tracking-h2: -0.85px;
  --text-h3: 33px; --font-weight-h3: 400; --leading-h3: 33px; --tracking-h3: -0.33px;
  --text-body: 18px; --font-weight-body: 400; --leading-body: 25px; --tracking-body: 0.12px;
  --text-small: 17px; --font-weight-small: 400; --leading-small: 25px;
  --text-eyebrow: 16px; --font-weight-eyebrow: 500; --tracking-eyebrow: 0.97px;
  --radius-base: 9999px;
  --radius-button: 9999px;
  --radius-card: 4px;
  --radius-pill: 9999px;
  --shadow-card: rgba(172, 171, 171, 0.3) 0px -1px 10px 0px;
  --shadow-overlay: rgba(0, 0, 0, 0.07) 13.6px 68.16px 64.32px 0px;
  --shadow-subtle: rgb(85, 85, 83) 0px 0px 0px 1px;
  --outline-focus: 2px solid rgb(33, 49, 48);  /* measured focus ring */
  --ease-brand: ease-out;
  --duration-fast: 150ms;  /* use: duration-[var(--duration-fast)] */
  --duration-base: 400ms;
  --duration-slow: 550ms;
  --section-y: 72px;  /* per-section vertical padding (measured) */
  --spacing: 8px;  /* measured base — drives the p-*/gap-* scale. steps seen on the page: 4, 5, 6, 8, 9, 12, 14, 18, 27, 36px */
}

Export: CSS variables

:root {
  /* action color #FFFFFF — the one interactive color; buttons/links/emphasis only, never large fills. */
  --bg: #FEFDFB;
  --surface: #F0F0EE;
  --border: #DCDEDC;
  --text: #213130;
  --text-muted: #747E7D;
  --primary: #FFFFFF;  /* primary brand / action color. */
  --link: #FFFFFF;  /* inline text links — shares the action color. */
  --button-bg: rgba(0, 0, 0, 0);
  --button-text: #213130;
  --font-heading: "Stolzl", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "Figtree", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --text-hero: 76px; --weight-hero: 400; --leading-hero: 83px; --tracking-hero: -1.52px;
  --text-h2: 43px; --weight-h2: 400; --leading-h2: 47px; --tracking-h2: -0.85px;
  --text-h3: 33px; --weight-h3: 400; --leading-h3: 33px; --tracking-h3: -0.33px;
  --text-body: 18px; --weight-body: 400; --leading-body: 25px; --tracking-body: 0.12px;
  --text-small: 17px; --weight-small: 400; --leading-small: 25px;
  --text-eyebrow: 16px; --weight-eyebrow: 500; --tracking-eyebrow: 0.97px;
  --radius: 9999px;
  --radius-button: 9999px;
  --radius-card: 4px;
  --radius-pill: 9999px;
  --shadow-card: rgba(172, 171, 171, 0.3) 0px -1px 10px 0px;
  --shadow-overlay: rgba(0, 0, 0, 0.07) 13.6px 68.16px 64.32px 0px;
  --shadow-subtle: rgb(85, 85, 83) 0px 0px 0px 1px;
  --focus-ring: 2px solid rgb(33, 49, 48);
  --ease: ease-out;
  --duration-fast: 150ms;
  --duration-base: 400ms;
  --duration-slow: 550ms;
  --section-y: 72px;
}

/* their own tokens, verbatim from the site's :root */
:root {
  --color-purple-200: hsl(259 100% 91%);
  --color-brand-secondary-aqua: hsl(174 64% 77%);
  --color-orange-200: hsl(25 100% 85%);
  --color-aqua-100: hsl(175 63% 88%);
  --color-purple-500: hsl(258 100% 76%);
  --color-aqua-800: hsl(175 51% 36%);
  --color-pink-300: hsl(336 100% 85%);
  --color-pink-500: hsl(335 100% 74%);
  --color-orange-600: hsl(25 94% 61%);
  --color-yellow-600: hsl(40 100% 63%);
  --color-neutral-600: hsl(60 3% 54%);
  --color-orange-800: hsl(25 72% 38%);
}
/* fonts: Stolzl may be proprietary — safe free fallback: Newsreader (Google Fonts). Figtree — free, on Google. */