Hey — decoded design system

hey.com · light · modern · custom · deep decode — measured live

Hey'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.

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/decode/hey.com.

Decoded design system

Hey's decoded design system: background #FFFFFF, text #231C33, accent #5522FA, link #5522FA, primary #B3F4E0; type scale h1 83px / h2 48px / body 18px; 4px spacing base; 21px base radius. The single interactive/action color is #5522FA — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

Using these colors

• Action color #5522FA — the single interactive color; only on things you click or must notice, never large fills.
• accent, link, secondary, button_bg are all #5522FA — one role, not several (the action color).
• accent #5522FA — 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 #B3F4E0 — a brand color — but the call-to-action uses #5522FA, not this.

Typography

• Heading: Moniker
• Body: Really Sans Large
• h1: 83px
• h2: 48px
• body: 18px

Spacing

• base unit: 4px
• scale: 4px, 6px, 9px, 13px, 16px, 19px, 21px, 27px, 32px, 45px

Radii

• base: 21px
• button: 60px

Shadow

rgba(255, 255, 255, 0.1) 0px 2.4px 28.8px 0px, rgba(255, 255, 255, 0.1) 0px 4.8px 38.4px 0px, rgba(255, 255, 255, 0.1) 0px 7.2px 48px 0px

Shadows (elevation)

• card: rgba(35, 28, 51, 0.1) 0px 25.6px 12.8px -25.6px, rgba(35, 28, 51, 0.15) 0px 38.4px 25.6px -38.4px, rgba(35, 28, 51, 0.2) 0px 51.2px 38.4px -51.2px
• overlay: rgba(255, 255, 255, 0.1) 0px 2.4px 28.8px 0px, rgba(255, 255, 255, 0.1) 0px 4.8px 38.4px 0px, rgba(255, 255, 255, 0.1) 0px 7.2px 48px 0px

Motion

Micro-interactions run at 150ms (dominant) with cubic-bezier(0.37, 1, 0.74, 1).

• durations: 150ms · 300ms
• easings: cubic-bezier(0.37, 1, 0.74, 1)
• animated properties: color, transform, text-decoration-color, text-decoration-thickness

Native design tokens

…and 42 more measured on the page.

Layout (measured)

• container max-width: 770px
• nav: 81px absolute

Responsive (measured)

• breakpoints: 768px · 1024px
• mobile (390px): hero 44px · nav hamburger

Install it

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

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

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

Export: DESIGN.md

# Hey — Design System

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

## Colors

| Role | Value |
|------|-------|
| bg | `#FFFFFF` |
| surface | `#F1F1F2` |
| border | `#DEDCE0` |
| text | `#231C33` |
| text_muted | `#767280` |
| primary | `#B3F4E0` |
| accent | `#5522FA` |
| link | `#5522FA` |
| secondary | `#5522FA` |
| button_bg | `#5522FA` |
| button_text | `#FFFFFF` |

**Using these colors**

- **Action color** `#5522FA` — 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`, `secondary`, `button_bg` are all `#5522FA` — one role, not several (your action color).
- **accent** `#5522FA` — 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** `#B3F4E0` — a brand color — but the call-to-action uses #5522FA, not this.
- **Page coverage** (full-page screenshot pixels): `#FFFFFF` 68.6% · `#7546BC` 8.7% · `#A079BF` 7.4% · `#F1EFF0` 5.5%

## Typography

- Heading: **Moniker** _(free fallback: Newsreader)_
- Body: **Really Sans Large** _(free fallback: Newsreader)_

| Role | Size / weight · line-height · tracking |
|------|------------------------------------------|
| hero | 83px / 900 · lh 92px |
| h2 | 48px / 850 · lh 53px |
| h3 | 40px / 850 · lh 48px |
| body | 18px / 700 · lh 26px · tracking -0.22px |
| small | 14px / 500 · lh 14px · tracking -0.18px |

- Weight ladder: 400 · 500 · 700 · 850 · 900 — use these exact measured weights, not the 400/600 defaults.

> **Fonts —** Moniker may be proprietary — safe free fallback: Newsreader (Google Fonts). Really Sans Large may be proprietary — safe free fallback: Newsreader (Google Fonts).

## Spacing
- base unit: 4px (inferred from the measured scale)
- measured scale: 4px, 6px, 9px, 13px, 16px, 19px, 21px, 27px, 32px, 45px — snap all gaps/padding to these
- section rhythm: 40px top/bottom padding per section (measured)

## Radius
- base: 21px
- button: 60px
- card: 68px

## Buttons

| Button | Fill / text | Border | Radius | Padding | Font | Shadow |
|--------|-------------|--------|--------|---------|------|--------|
| primary | `rgba(0, 0, 0, 0)` / `#FFFFFF` | none | 60px | 0px 0px 0px 0px | 500 24px / -0.42px | rgba(255, 255, 255, 0.1) 0px 2.4px 28.8px 0px, rgba(255, 255, 255, 0.1) 0px 4.8px 38.4px 0px, rgba(255, 255, 255, 0.1) 0px 7.2px 48px 0px |
| secondary | `#FFFFFF` / `#FFFFFF` | none | 68px | — | — | none |

**States (measured, not guessed)**

- transition: `color 0.15s cubic-bezier(0.37, 1, 0.74, 1)`

## Shadows (elevation)
- card: `rgba(35, 28, 51, 0.1) 0px 25.6px 12.8px -25.6px, rgba(35, 28, 51, 0.15) 0px 38.4px 25.6px -38.4px, rgba(35, 28, 51, 0.2) 0px 51.2px 38.4px -51.2px`
- button: `rgba(255, 255, 255, 0.1) 0px 2.4px 28.8px 0px, rgba(255, 255, 255, 0.1) 0px 4.8px 38.4px 0px, rgba(255, 255, 255, 0.1) 0px 7.2px 48px 0px`
- overlay: `rgba(255, 255, 255, 0.1) 0px 2.4px 28.8px 0px, rgba(255, 255, 255, 0.1) 0px 4.8px 38.4px 0px, rgba(255, 255, 255, 0.1) 0px 7.2px 48px 0px`

## Motion
- durations: 150ms (dominant) · 300ms
- easings: `cubic-bezier(0.37, 1, 0.74, 1)` (dominant)
- animated properties: color, transform, text-decoration-color, text-decoration-thickness

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-black` | `#231C33` |
| `--color-blurple` | `#5522FA` |
| `--color-canary` | `#FFF5CA` |
| `--color-canary-light` | `#FFFAE5` |
| `--color-cobalt` | `#0074E4` |
| `--color-coral` | `#F95C5C` |
| `--color-coral-dark` | `#EC4343` |
| `--color-green` | `#299850` |
| `--color-green-light` | `#16BA5B` |
| `--color-grey` | `#736C83` |
| `--color-lavender` | `#D5D2FF` |
| `--color-lavender-light` | `#EAE8FE` |

_…and 40 more measured on the page._

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

## Layout (measured)
- container max 770px
- nav: 81px absolute

## Components (measured)
- link: #5522FA · underline — hover #231C33

## Responsive (measured)
- breakpoints: 768px · 1024px
- mobile (390px): hero 44px · body 20px · 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.

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