MozaikaDesign system

HeyGen — Design System

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

HeyGen turns AI video into a spectacle: ABC Solar Display at 80px dominates whole viewports, avatar videos autoplay as the true hero imagery, and a signal cyan #00C3FF on 12px-radius buttons keeps the energy synthetic and bright. TT Norms Pro handles the 16px supporting text while scale does the selling — a creator tool that shouts in display type because its product literally speaks.

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/heygen.

Tokens

HeyGen's decoded design system: background #FFFFFF, text #0A0A0B, accent #00C3FF, link #00C3FF, primary #DFF8FF; type scale h1 80px / h2 56px / body 80px; 4px spacing base; 10px base radius. The single interactive/action color is #00C3FF — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

RoleValue
bg#FFFFFF
surface#F0F0F0
border#DADADA
text#0A0A0B
text_muted#676767
primary#DFF8FF
accent#00C3FF
link#00C3FF
secondary#F9ECFF
button_bg#00C3FF
button_text#171717

Using these colors

Typography

Spacing

Radii

Motion

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

Native design tokens

TokenValue
--background#fff
--foreground#171717
--color-dark-green#233717
--color-heygen-gray-carbon#333
--color-slate-200oklch(92.9% .013 255.508)
--color-pink-500#f3a6ff
--color-neutral-600oklch(43.9% 0 0)
--color-pink-950#3e2b4e
--color-blue-700oklch(48.8% .243 264.376)
--color-neutral-300oklch(87% 0 0)

…and 110 more measured on the page.

Button states (measured)

Layout (measured)

Motion choreography (measured)

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

Responsive (measured)

Per-section tokens (16)

Export: DESIGN.md

# HeyGen — Design System

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

HeyGen turns AI video into a spectacle: ABC Solar Display at 80px dominates whole viewports, avatar videos autoplay as the true hero imagery, and a signal cyan #00C3FF on 12px-radius buttons keeps the energy synthetic and bright. TT Norms Pro handles the 16px supporting text while scale does the selling — a creator tool that shouts in display type because its product literally speaks.

## Colors

| Role | Value |
|------|-------|
| bg | `#FFFFFF` |
| surface | `#F0F0F0` |
| border | `#DADADA` |
| text | `#0A0A0B` |
| text_muted | `#676767` |
| primary | `#DFF8FF` |
| accent | `#00C3FF` |
| link | `#00C3FF` |
| secondary | `#F9ECFF` |
| button_bg | `#00C3FF` |
| button_text | `#171717` |

**Using these colors**

- **Action color** `#00C3FF` — 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 `#00C3FF` — one role, not several (your action color).
- **accent** `#00C3FF` — 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** `#DFF8FF` — a neutral UI color (chips, tags, icon fills, chrome), not the action color (action = #00C3FF).
- **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.

---

> **Decoded with Mozaika** — measured live, not guessed. Full decoded design system + one-command install: mozaika.design/ds/heygen

Export: Tailwind v4 (@theme)

@theme {
  /* action color #00C3FF — the one interactive color; buttons/links/emphasis only, never large fills. */
  --color-bg: #FFFFFF;
  --color-surface: #F0F0F0;
  --color-border: #DADADA;
  --color-text: #0A0A0B;
  --color-text-muted: #676767;
  --color-primary: #DFF8FF;  /* a neutral UI color (chips, tags, icon fills, chrome), not the action color (action = #00C3FF). */
  --color-accent: #00C3FF;  /* 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: #00C3FF;  /* inline text links — shares the action color. */
  --color-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. */
  --color-button-bg: #00C3FF;  /* primary-button fill — the main call-to-action color. */
  --color-button-text: #171717;
  /* fonts: TT Norms Pro may be proprietary — safe free fallback: Newsreader (Google Fonts). */
  --font-heading: "TT Norms Pro", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "TT Norms Pro", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  /* measured weights: 400, 500, 700 — use these, not 400/600 */
  --text-hero: 80px; --font-weight-hero: 400; --leading-hero: 84px;
  --text-h2: 56px; --font-weight-h2: 700; --leading-h2: 64px; --tracking-h2: -0.56px;
  --text-h3: 44px; --font-weight-h3: 700; --leading-h3: 44px;
  --text-body: 16px; --font-weight-body: 400; --leading-body: 24px; --tracking-body: -0.16px;
  --text-small: 15px; --font-weight-small: 700; --leading-small: 22px;
  --radius-base: 10px;
  --radius-button: 12px;
  --radius-card: 20px;
  --radius-pill: 9999px;
  --color-btn-hover: #333333;  /* 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: 150ms;  /* use: duration-[var(--duration-fast)] */
  --duration-base: 200ms;
  --duration-slow: 300ms;
  --section-y: 120px;  /* per-section vertical padding (measured) */
  --spacing: 4px;  /* measured base — drives the p-*/gap-* scale. steps seen on the page: 3, 4, 8, 10, 12, 14, 16, 20, 24, 30px */
}

Export: CSS variables

:root {
  /* action color #00C3FF — the one interactive color; buttons/links/emphasis only, never large fills. */
  --bg: #FFFFFF;
  --surface: #F0F0F0;
  --border: #DADADA;
  --text: #0A0A0B;
  --text-muted: #676767;
  --primary: #DFF8FF;  /* a neutral UI color (chips, tags, icon fills, chrome), not the action color (action = #00C3FF). */
  --accent: #00C3FF;  /* 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: #00C3FF;  /* inline text links — shares the action color. */
  --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. */
  --button-bg: #00C3FF;  /* primary-button fill — the main call-to-action color. */
  --button-text: #171717;
  --font-heading: "TT Norms Pro", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "TT Norms Pro", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --text-hero: 80px; --weight-hero: 400; --leading-hero: 84px;
  --text-h2: 56px; --weight-h2: 700; --leading-h2: 64px; --tracking-h2: -0.56px;
  --text-h3: 44px; --weight-h3: 700; --leading-h3: 44px;
  --text-body: 16px; --weight-body: 400; --leading-body: 24px; --tracking-body: -0.16px;
  --text-small: 15px; --weight-small: 700; --leading-small: 22px;
  --radius: 10px;
  --radius-button: 12px;
  --radius-card: 20px;
  --radius-pill: 9999px;
  --btn-bg-hover: #333333;
  --focus-ring: 1px auto rgb(16, 16, 16);
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 150ms;
  --duration-base: 200ms;
  --duration-slow: 300ms;
  --section-y: 120px;
}

/* their own tokens, verbatim from the site's :root */
:root {
  --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;
}
/* fonts: TT Norms Pro may be proprietary — safe free fallback: Newsreader (Google Fonts). */