HeyGen — decoded design system

heygen.com · light · modern · tailwind · deep decode — measured live

HeyGen's design system, decoded live by Mozaika: measured color roles, type scale, buttons with real hover/focus states, motion and the brand's own tokens.

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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/decode/heygen.com.

Decoded design system

HeyGen's decoded design system: background #FFFFFF, text #171717, accent #00C3FF, link #00C3FF, primary #DFF8FF; type scale h1 80px / h2 56px / body 16px; 4px spacing base; 10px base radius. The single interactive/action color is #000000 — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

Using these colors

• Action color #000000 — the single interactive color; only on things you click or must notice, never large fills.
• accent, link are all #00C3FF — one role, not several (the action color).
• accent #00C3FF — accent for emphasis — keep it rare on the page.
• primary #DFF8FF — a neutral UI color (chips, tags, icon fills, chrome), not the action color (action = #000000).
• secondary #F9ECFF — 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.

Typography

• Heading: TT Norms Pro
• Body: TT Norms Pro
• h1: 80px
• h2: 56px
• body: 16px

Spacing

• base unit: 4px
• scale: 3px, 4px, 8px, 10px, 12px, 14px, 16px, 20px, 24px, 30px

Radii

• base: 10px
• button: 12px

Motion

Micro-interactions run at 150ms (dominant) with cubic-bezier(0.4, 0, 0.2, 1).

• durations: 150ms · 200ms · 300ms
• easings: cubic-bezier(0.4, 0, 0.2, 1) · cubic-bezier(0, 0, 0.2, 1)
• animated properties: color, background-color, border-color, outline-color

Native design tokens

…and 110 more measured on the page.

Button states (measured)

• primary hover: background #333333
• primary focus: outline 1px auto rgb(16, 16, 16)

Layout (measured)

• container max-width: 1280px
• nav: 84px sticky
• common grid: 2 columns

Motion choreography (measured)

Load order: div.pointer-events-none → div.flex×2 → path → div.animate-[fadeSlideIn_0.3

Responsive (measured)

• breakpoints: 768px
• mobile (390px): hero 40px · nav hamburger

Install it

Drop this measured system into any shadcn/Tailwind project in one command:

npx shadcn add mozaika.design/r/decode/heygen.com

registry item · or query it over MCP: get_design_system("HeyGen")

Export: DESIGN.md

# HeyGen — Design System

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

## Colors

| Role | Value |
|------|-------|
| bg | `#FFFFFF` |
| surface | `#F1F1F1` |
| border | `#DCDCDC` |
| text | `#171717` |
| text_muted | `#6F6F6F` |
| primary | `#DFF8FF` |
| accent | `#00C3FF` |
| link | `#00C3FF` |
| secondary | `#F9ECFF` |
| button_bg | `#000000` |
| button_text | `#FFFFFF` |

**Using these colors**

- **Action color** `#000000` — 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` are all `#00C3FF` — one role, not several.
- **accent** `#00C3FF` — accent for emphasis — keep it rare on the page.
- **primary** `#DFF8FF` — a neutral UI color (chips, tags, icon fills, chrome), not the action color (action = #000000).
- **secondary** `#F9ECFF` — 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): `#FFFFFF` 74.6% · `#1A1A1A` 13.2% · `#3BA2C2` 8.9% · `#B2E4F4` 3.3%

## Typography

- Heading: **TT Norms Pro** _(free fallback: Newsreader)_
- Body: **TT Norms Pro** _(free fallback: Newsreader)_

| Role | Size / weight · line-height · tracking |
|------|------------------------------------------|
| hero | 80px / 400 · lh 84px |
| h2 | 56px / 700 · lh 64px · tracking -0.56px |
| h3 | 44px / 700 · lh 44px |
| body | 16px / 400 · lh 24px · tracking -0.16px |
| small | 15px / 700 · lh 22px |

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

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

## Spacing
- base unit: 4px (inferred from the measured scale)
- measured scale: 3px, 4px, 8px, 10px, 12px, 14px, 16px, 20px, 24px, 30px — snap all gaps/padding to these
- section rhythm: 120px top/bottom padding per section (measured)

## Radius
- base: 10px
- button: 12px
- card: 20px
- pill: 9999px

## Buttons

| Button | Fill / text | Border | Radius | Padding | Font | Shadow |
|--------|-------------|--------|--------|---------|------|--------|
| primary | `#000000` / `#FFFFFF` | none | 12px | 8px 10px 8px 10px | 700 18px / -0.45px | none |
| secondary | `#FFFFFF` / `#233717` | none | 12px | — | — | none |

**States (measured, not guessed)**

- primary hover: background `#333333`
- primary focus: outline `1px auto rgb(16, 16, 16)`
- transition: `color 0.15s cubic-bezier(0.4, 0, 0.2, 1)`

## Motion
- durations: 150ms (dominant) · 200ms · 300ms
- easings: `cubic-bezier(0.4, 0, 0.2, 1)` (dominant) · `cubic-bezier(0, 0, 0.2, 1)`
- animated properties: color, background-color, border-color, outline-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 |
|-------|-------|
| `--background` | `#fff` |
| `--foreground` | `#171717` |
| `--color-dark-green` | `#233717` |
| `--color-heygen-gray-carbon` | `#333` |
| `--color-slate-200` | `oklch(92.9% .013 255.508)` |
| `--color-pink-500` | `#f3a6ff` |
| `--color-neutral-600` | `oklch(43.9% 0 0)` |
| `--color-pink-950` | `#3e2b4e` |
| `--color-blue-700` | `oklch(48.8% .243 264.376)` |
| `--color-neutral-300` | `oklch(87% 0 0)` |
| `--color-heygen-gray-mist-50` | `#fbfaf9` |
| `--color-heygen-blue-opacity-40` | `#03333766` |

_…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 1280px · common grid: 2-col
- nav: 84px sticky

| Section (y) | Height | Cols | Gap | Pad y | Split |
|---|---|---|---|---|---|
| 174 | 457 | 2 | — | 0/0 | — |
| 631 | 466 | — | — | 0/0 | — |
| 1217 | 1187 | 2 | 20 | 0/0 | — |

## Motion choreography (measured)
Load order: `div.pointer-events-none` @0ms → `div.flex`×2 @1ms → `path` @1ms → `` @1ms
- `?` — opacity 0→1 · transform translateY(4px)→translateY(0px) — 350ms ease-out
- `div.flex` ×2 — transform translate(0px)→translate(-50%) — 25000ms · loops

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 24px · bg #1A1A1A
  - hover: font-weight `400` · letter-spacing `normal`

## Responsive (measured)
- breakpoints: 768px
- mobile (390px): hero 40px · 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.

← All decoded design systems

An automated reading of HeyGen's publicly-visible CSS (colors, fonts, spacing, motion) — not affiliated with heygen.com. No screenshots stored. Removal requests: hello@mozaika.design.