MozaikaDesign system

Beehiiv — Design System

light · modern · medium · tailwind · confidence 92% · deep decode

Beehiiv shouts in Clash Grotesk caps — MORE THAN JUST NEWSLETTERS at 60px/700 on near-black — then lets Satoshi at 16px calmly explain the Create/Publish/Grow/Monetize grid. Revenue counters and editor screenshots glow against the dark, and pricing tiers stack in the same display voice: creator-economy tooling that markets itself with a media brand's swagger.

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/beehiiv.

Tokens

Beehiiv's decoded design system: background #FFFFFF, text #060419, accent #060419, link #060419, primary #131125; type scale h1 72px / h2 48px / body 14px; 8px spacing base; 8px base radius. The single interactive/action color is #060419 — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

RoleValue
bg#FFFFFF
surface#F0EFF1
border#D9D9DC
text#060419
text_muted#646370
primary#131125
accent#060419
link#060419
secondary#C4C2D6
button_bg#060419
button_text#FFFFFF

Using these colors

Typography

Spacing

Radii

Shadows (elevation)

Motion

Micro-interactions run at 125ms (dominant) with cubic-bezier(0.4, 0, 0.2, 1).

Native design tokens

TokenValue
--PhoneInput-color--focus#03b2cb
--PhoneInputCountrySelectArrow-color--focus#03b2cb
--PhoneInputCountryFlag-borderColor#00000080
--PhoneInputCountryFlag-borderColor--focus#03b2cb
--PhoneInputCountryFlag-backgroundColor--loading#0000001a
--rt-color-white#fff
--rt-color-dark#222
--rt-color-success#8dc572
--rt-color-error#be6464
--rt-color-warning#f0ad4e

…and 44 more measured on the page.

Button states (measured)

Layout (measured)

Motion choreography (measured)

Load order: div.trusted-newsletters-trac → div.ticker-image-container×4 → div.ticker-image-container×2 → div.animate-fadeIn

Scroll reveal: 4 elements rest at opacity 0, translateY(64px), animate in over 0.5s cubic-bezier(0.4, 0, 0.2, 1).

Responsive (measured)

Per-section tokens (13)

Export: DESIGN.md

# Beehiiv — Design System

> light, modern, medium, tailwind — deep decode (measured live)

Beehiiv shouts in Clash Grotesk caps — MORE THAN JUST NEWSLETTERS at 60px/700 on near-black — then lets Satoshi at 16px calmly explain the Create/Publish/Grow/Monetize grid. Revenue counters and editor screenshots glow against the dark, and pricing tiers stack in the same display voice: creator-economy tooling that markets itself with a media brand's swagger.

## Colors

| Role | Value |
|------|-------|
| bg | `#FFFFFF` |
| surface | `#F0EFF1` |
| border | `#D9D9DC` |
| text | `#060419` |
| text_muted | `#646370` |
| primary | `#131125` |
| accent | `#060419` |
| link | `#060419` |
| secondary | `#C4C2D6` |
| button_bg | `#060419` |
| button_text | `#FFFFFF` |

**Using these colors**

- **Action color** `#060419` — the single interactive color; it appears only on things you click or must notice (buttons, key highlights), never on large fills or backgrounds.
- `accent`, `link`, `button_bg` are all `#060419` — one role, not several (your action color).
- **accent** `#060419` — 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.
- **primary** `#131125` — a brand color — but the call-to-action uses #060419, not this.
- **secondary** `#C4C2D6` — optional secondary accent — LOW decode confidence; use rarely (a status color or a single decorative moment) or omit it entirely. Prefer one accent unless the reference clearly shows two.
- **Page coverage** (full-page screenshot pixels): `#060419` 69.2% · `#928A9C` 14.3% · `#DCD3D2` 9.8% · `#282449` 6.6%

## Typography

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

| Role | Size / weight · line-height · tracking |
|------|------------------------------------------|
| hero | 60px / 700 · lh 60px |
| h2 | 48px / 700 · lh 48px |
| h3 | 30px / 700 · lh 36px |
| body | 20px / 500 · lh 28px |
| small | 18px / 700 · lh 28px |
| eyebrow | 14px / 700 · tracking 1.12px |

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

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

## Spacing
- base unit: 8px (inferred from the measured scale)
- measured scale: 4px, 8px, 10px, 12px, 16px, 20px, 24px, 32px, 40px, 64px — snap all gaps/padding to these

## Radius
- base: 8px
- button: 0px
- card: 6px
- pill: 9999px

## Buttons

| Button | Fill / text | Border | Radius | Padding | Font | Shadow |
|--------|-------------|--------|--------|---------|------|--------|
| primary | `#FFFFFF` / `#000000` | 1px solid rgb(255, 255, 255) | 4px | 8px 24px 8px 24px | 500 14px | none |
| secondary | `rgba(0, 0, 0, 0)` / `#FFFFFF` | 1px solid rgb(255, 255, 255) | 6px | 8px 24px 8px 24px | 500 14px | none |

**States (measured, not guessed)**

- primary hover: box-shadow `rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0.1) 0px 10px 15px -3px, rgba(0, 0, 0, 0.1) 0px 4px 6px -4px` · background `#060419` · color `#FFFFFF`
- primary focus: outline `1px auto rgb(16, 16, 16)`
- secondary hover: background `#FFFFFF` · color `#060419`
- transition: `all 0.2s cubic-bezier(0.4, 0, 0.2, 1)`

## Shadows (elevation)
- subtle: `rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0.1) 0px 4px 6px -1px, rgba(0, 0, 0, 0.1) 0px 2px 4px -2px`

## Motion
- durations: 125ms (dominant) · 300ms · 200ms
- easings: `cubic-bezier(0.4, 0, 0.2, 1)` (dominant) · `ease-out`
- animated properties: transform, color, background-color, border-color

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 |
|-------|-------|
| `--PhoneInput-color--focus` | `#03b2cb` |
| `--PhoneInputCountrySelectArrow-color--focus` | `#03b2cb` |
| `--PhoneInputCountryFlag-borderColor` | `#00000080` |
| `--PhoneInputCountryFlag-borderColor--focus` | `#03b2cb` |
| `--PhoneInputCountryFlag-backgroundColor--loading` | `#0000001a` |
| `--rt-color-white` | `#fff` |
| `--rt-color-dark` | `#222` |
| `--rt-color-success` | `#8dc572` |
| `--rt-color-error` | `#be6464` |
| `--rt-color-warning` | `#f0ad4e` |
| `--rt-color-info` | `#337ab7` |
| `--text-primary` | `#fff` |

_…and 42 more measured on the page._

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

## Layout (measured)
- container max 1180px
- nav: 0px

| Section (y) | Height | Cols | Gap | Pad y | Split |
|---|---|---|---|---|---|
| 862 | 954 | — | — | 0/0 | — |
| 1816 | 954 | — | — | 0/0 | — |
| 2769 | 954 | — | — | 0/0 | — |
| 3723 | 1296 | — | — | 0/0 | — |

## Motion choreography (measured)
Load order: `div.trusted-newsletters-trac` @0ms → `div.ticker-image-container`×4 @1ms → `div.ticker-image-container`×2 @1ms → `div.animate-fadeIn` @858ms
- `div.animate-fadeIn` — opacity 0→1 — 300ms ease-in-out
- scroll reveal: 4 elements rest at opacity 0, translateY(64px), animate in over 0.5s cubic-bezier(0.4, 0, 0.2, 1) (0 revealed during the drive).

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

## Components (measured)
- card ×3: pad 24px 24px 24px 24px · r 8px · border 1px solid rgb(21, 25, 79) · shadow rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0.1) 0px 4px 6px -1px, rgba(0, 0, 0, 0.1) 0px 2px 4px -2px · bg rgba(0, 0, 0, 0)
  - hover: font-weight `400` · letter-spacing `normal`

## Responsive (measured)
- breakpoints: 480px · 600px · 640px · 768px · 800px · 992px
- mobile (390px): hero 42px · body 16px · 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/beehiiv

Export: Tailwind v4 (@theme)

@theme {
  /* action color #060419 — the one interactive color; buttons/links/emphasis only, never large fills. */
  --color-bg: #FFFFFF;
  --color-surface: #F0EFF1;
  --color-border: #D9D9DC;
  --color-text: #060419;
  --color-text-muted: #646370;
  --color-primary: #131125;  /* a brand color — but the call-to-action uses #060419, not this. */
  --color-accent: #060419;  /* 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: #060419;  /* inline text links — shares the action color. */
  --color-secondary: #C4C2D6;  /* optional secondary accent — LOW decode confidence; use rarely (a status color or a single decorative moment) or omit it entirely. Prefer one accent unless the reference clearly shows two. */
  --color-button-bg: #060419;  /* primary-button fill — the main call-to-action color. */
  --color-button-text: #FFFFFF;
  /* fonts: SatoshiFont may be proprietary — safe free fallback: Newsreader (Google Fonts). */
  --font-heading: "SatoshiFont", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "SatoshiFont", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  /* measured weights: 400, 500, 600, 700 — use these, not 400/600 */
  --text-hero: 60px; --font-weight-hero: 700; --leading-hero: 60px;
  --text-h2: 48px; --font-weight-h2: 700; --leading-h2: 48px;
  --text-h3: 30px; --font-weight-h3: 700; --leading-h3: 36px;
  --text-body: 20px; --font-weight-body: 500; --leading-body: 28px;
  --text-small: 18px; --font-weight-small: 700; --leading-small: 28px;
  --text-eyebrow: 14px; --font-weight-eyebrow: 700; --tracking-eyebrow: 1.12px;
  --radius-base: 8px;
  --radius-button: 0px;
  --radius-card: 6px;
  --radius-pill: 9999px;
  --shadow-subtle: rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0.1) 0px 4px 6px -1px, rgba(0, 0, 0, 0.1) 0px 2px 4px -2px;
  --color-btn-hover: #060419;  /* measured primary hover fill */
  --outline-focus: 1px auto rgb(16, 16, 16);  /* measured focus ring */
  --ease-brand: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 125ms;  /* use: duration-[var(--duration-fast)] */
  --duration-base: 200ms;
  --duration-slow: 300ms;
  --spacing: 8px;  /* measured base — drives the p-*/gap-* scale. steps seen on the page: 4, 8, 10, 12, 16, 20, 24, 32, 40, 64px */
}

Export: CSS variables

:root {
  /* action color #060419 — the one interactive color; buttons/links/emphasis only, never large fills. */
  --bg: #FFFFFF;
  --surface: #F0EFF1;
  --border: #D9D9DC;
  --text: #060419;
  --text-muted: #646370;
  --primary: #131125;  /* a brand color — but the call-to-action uses #060419, not this. */
  --accent: #060419;  /* 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: #060419;  /* inline text links — shares the action color. */
  --secondary: #C4C2D6;  /* optional secondary accent — LOW decode confidence; use rarely (a status color or a single decorative moment) or omit it entirely. Prefer one accent unless the reference clearly shows two. */
  --button-bg: #060419;  /* primary-button fill — the main call-to-action color. */
  --button-text: #FFFFFF;
  --font-heading: "SatoshiFont", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "SatoshiFont", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --text-hero: 60px; --weight-hero: 700; --leading-hero: 60px;
  --text-h2: 48px; --weight-h2: 700; --leading-h2: 48px;
  --text-h3: 30px; --weight-h3: 700; --leading-h3: 36px;
  --text-body: 20px; --weight-body: 500; --leading-body: 28px;
  --text-small: 18px; --weight-small: 700; --leading-small: 28px;
  --text-eyebrow: 14px; --weight-eyebrow: 700; --tracking-eyebrow: 1.12px;
  --radius: 8px;
  --radius-button: 0px;
  --radius-card: 6px;
  --radius-pill: 9999px;
  --shadow-subtle: rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0.1) 0px 4px 6px -1px, rgba(0, 0, 0, 0.1) 0px 2px 4px -2px;
  --btn-bg-hover: #060419;
  --focus-ring: 1px auto rgb(16, 16, 16);
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 125ms;
  --duration-base: 200ms;
  --duration-slow: 300ms;
}

/* their own tokens, verbatim from the site's :root */
:root {
  --PhoneInput-color--focus: #03b2cb;
  --PhoneInputCountrySelectArrow-color--focus: #03b2cb;
  --PhoneInputCountryFlag-borderColor: #00000080;
  --PhoneInputCountryFlag-borderColor--focus: #03b2cb;
  --PhoneInputCountryFlag-backgroundColor--loading: #0000001a;
  --rt-color-white: #fff;
  --rt-color-dark: #222;
  --rt-color-success: #8dc572;
  --rt-color-error: #be6464;
  --rt-color-warning: #f0ad4e;
  --rt-color-info: #337ab7;
  --text-primary: #fff;
}
/* fonts: SatoshiFont may be proprietary — safe free fallback: Newsreader (Google Fonts). */