MozaikaDesign system

Fey — Design System

dark · professional · medium · custom · confidence 90% · deep decode

The full decoded design system for Fey: 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/fey.

Tokens

Fey's decoded design system: background #000000, text #868F97, accent #479FFA, link #479FFA, primary #868F97; type scale h1 54px / h2 26px / body 14px; 12px spacing base; 14px 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

RoleValue
bg#000000
surface#080809
border#141516
text#868F97
text_muted#53585D
primary#868F97
accent#479FFA
link#479FFA
secondary#D88036
button_bg#000000
button_text#FFFFFF

Using these colors

Typography

Spacing

Radii

Shadow

rgba(0, 0, 0, 0.12) 0px 30.0444px 16.2444px 0px, rgba(0, 0, 0, 0.07) 0px 15.6px 8.2875px 0px, rgba(0, 0, 0, 0.04) 0px 6.35556px 4.15556px 0px

Motion

Micro-interactions run at 600ms (dominant) with ease-out.

Native design tokens

TokenValue
--ink#595959
--ink-bright#1c1c1c
--easecubic-bezier(0.16, 1, 0.3, 1)

Button states (measured)

Layout (measured)

Motion choreography (measured)

Load order: div → span.lead → span.word×83 → a.link×5 → img.signatures

Responsive (measured)

Per-section tokens (10)

Export: DESIGN.md

# Fey — Design System

> dark, professional, medium, custom — deep decode (measured live)

## Colors

| Role | Value |
|------|-------|
| bg | `#000000` |
| surface | `#080809` |
| border | `#141516` |
| text | `#868F97` |
| text_muted | `#53585D` |
| primary | `#868F97` |
| accent | `#479FFA` |
| link | `#479FFA` |
| secondary | `#D88036` |
| 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 `#479FFA` — one role, not several.
- **accent** `#479FFA` — accent for emphasis — keep it rare on the page.
- **primary** `#868F97` — ≈ the text color — a foreground/text color, not an action color (action = #000000).
- **secondary** `#D88036` — 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): `#FAFAFA` 94.2% · `#8E8E8E` 1.4% · `#ECECEC` 1.1% · `#B6B6B6` 1.1%

## Typography

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

| Role | Size / weight · line-height · tracking |
|------|------------------------------------------|
| hero | 21px / 600 · lh 33px · tracking -0.21px |

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

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

## Spacing
- base unit: 12px
- scale: 6px, 12px, 18px, 24px, 36px, 48px, 72px, 96px

## Radius
- base: 14px
- button: 99px

## Buttons

| Button | Fill / text | Border | Radius | Padding | Font | Shadow |
|--------|-------------|--------|--------|---------|------|--------|
| primary | `rgba(0, 0, 0, 0)` / `#1C1C1C` | none | 99px | 0px 0px 0px 0px | 700 21px / -0.21px | rgba(0, 0, 0, 0.12) 0px 30.0444px 16.2444px 0px, rgba(0, 0, 0, 0.07) 0px 15.6px 8.2875px 0px, rgba(0, 0, 0, 0.04) 0px 6.35556px 4.15556px 0px |
| secondary | `#191919` / `#FFFFFF` | none | 0px | — | — | none |

**States (measured, not guessed)**

- primary focus: outline `1px auto rgb(16, 16, 16)`
- transition: `background-size 0.35s cubic-bezier(0.16, 1, 0.3, 1)`

## Motion
- durations: 600ms (dominant) · 350ms · 400ms
- easings: `ease-out` (dominant) · `cubic-bezier(0.16, 1, 0.3, 1)`
- animated properties: background-size, gap

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 |
|-------|-------|
| `--ink` | `#595959` |
| `--ink-bright` | `#1c1c1c` |
| `--ease` | `cubic-bezier(0.16, 1, 0.3, 1)` |

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

## Layout (measured)
- nav: 108px absolute

## Motion choreography (measured)
Load order: `div` @0ms → `span.lead` @0ms → `span.word`×83 @24ms → `a.link`×5 @274ms → `img.signatures` @907ms
- `div` — opacity 0→1 — 2400ms cubic-bezier(0.16, 1, 0.3, 1)
- `span.lead` — opacity 0→1 · filter blur(8px)→blur(0px) — 600ms ease-out
- `span.word` ×22 — opacity 0→1 · filter blur(8px)→blur(0px) — 600ms ease-out (delay 38ms)

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

## Components (measured)
- link: #1C1C1C · no underline

## Responsive (measured)
- mobile (390px): 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/fey

Export: Tailwind v4 (@theme)

@theme {
  /* action color #000000 — the one interactive color; buttons/links/emphasis only, never large fills. */
  --color-bg: #000000;
  --color-surface: #080809;
  --color-border: #141516;
  --color-text: #868F97;
  --color-text-muted: #53585D;
  --color-primary: #868F97;  /* ≈ the text color — a foreground/text color, not an action color (action = #000000). */
  --color-accent: #479FFA;  /* accent for emphasis — keep it rare on the page. */
  --color-link: #479FFA;  /* inline text links and link-styled controls. */
  --color-secondary: #D88036;  /* 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: #000000;  /* primary-button fill — the main call-to-action color. */
  --color-button-text: #FFFFFF;
  /* fonts: Calibre may be proprietary — safe free fallback: Newsreader (Google Fonts). */
  --font-heading: "Calibre", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "Calibre", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  /* measured weights: 600, 700 — use these, not 400/600 */
  --text-hero: 21px; --font-weight-hero: 600; --leading-hero: 33px; --tracking-hero: -0.21px;
  --radius-base: 14px;
  --radius-button: 99px;
  --outline-focus: 1px auto rgb(16, 16, 16);  /* measured focus ring */
  --ease-brand: ease-out;
  --duration-fast: 350ms;  /* use: duration-[var(--duration-fast)] */
  --duration-base: 400ms;
  --duration-slow: 600ms;
  --spacing-1: 6px;
  --spacing-2: 12px;
  --spacing-3: 18px;
  --spacing-4: 24px;
  --spacing-5: 36px;
  --spacing-6: 48px;
  --spacing-7: 72px;
  --spacing-8: 96px;
}

Export: CSS variables

:root {
  /* action color #000000 — the one interactive color; buttons/links/emphasis only, never large fills. */
  --bg: #000000;
  --surface: #080809;
  --border: #141516;
  --text: #868F97;
  --text-muted: #53585D;
  --primary: #868F97;  /* ≈ the text color — a foreground/text color, not an action color (action = #000000). */
  --accent: #479FFA;  /* accent for emphasis — keep it rare on the page. */
  --link: #479FFA;  /* inline text links and link-styled controls. */
  --secondary: #D88036;  /* 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: #000000;  /* primary-button fill — the main call-to-action color. */
  --button-text: #FFFFFF;
  --font-heading: "Calibre", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "Calibre", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --text-hero: 21px; --weight-hero: 600; --leading-hero: 33px; --tracking-hero: -0.21px;
  --radius: 14px;
  --radius-button: 99px;
  --focus-ring: 1px auto rgb(16, 16, 16);
  --ease: ease-out;
  --duration-fast: 350ms;
  --duration-base: 400ms;
  --duration-slow: 600ms;
}

/* their own tokens, verbatim from the site's :root */
:root {
  --ink: #595959;
  --ink-bright: #1c1c1c;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}
/* fonts: Calibre may be proprietary — safe free fallback: Newsreader (Google Fonts). */