MozaikaDesign system

Bellroy — Design System

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

The full decoded design system for Bellroy: 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/bellroy.

Tokens

Bellroy's decoded design system: background #BFBFBF, text #0A0A0B, accent #CD4C20, link #0000EE, primary #CD4C20; type scale h1 70px / h2 21px / body 13px; 4px spacing base; 0px base radius. The single interactive/action color is #CD4C20 — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

RoleValue
bg#BFBFBF
surface#B4B4B4
border#A3A3A4
text#0A0A0B
text_muted#4E4E4F
primary#CD4C20
accent#CD4C20
link#0000EE
secondary#B85021
button_bg#CD4C20
button_text#FFFFFF

Using these colors

Typography

Spacing

Radii

Shadow

rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0.3) 0px 27px 15px -30px, rgba(0, 0, 0, 0.5) 0px 11px 9px -10px

Shadows (elevation)

Motion

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

Native design tokens

TokenValue
--color-surface-primary#f7f7f7
--modal-header-color#CD4C20
--color-grey-200#efefef
--link-color-text#CD4C20
--color-text-brand#CD4C20
--color-grey-100#f7f7f7
--color-grey-600#333333
--color-text-inverted#ffffff
--color-text-secondary#666666
--color-text-tertiary#9b9b9b

…and 14 more measured on the page.

Button states (measured)

Layout (measured)

Motion choreography (measured)

Load order: button.hidden

Overlay recipe (measured)

dialog panel: #FFFFFF · radius 0px

Input (measured)

height 34px · radius 0px

Responsive (measured)

Per-section tokens (11)

Export: DESIGN.md

# Bellroy — Design System

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

## Colors

| Role | Value |
|------|-------|
| bg | `#BFBFBF` |
| surface | `#B4B4B4` |
| border | `#A3A3A4` |
| text | `#0A0A0B` |
| text_muted | `#4E4E4F` |
| primary | `#CD4C20` |
| accent | `#CD4C20` |
| link | `#0000EE` |
| secondary | `#B85021` |
| button_bg | `#CD4C20` |
| button_text | `#FFFFFF` |

**Using these colors**

- **Action color** `#CD4C20` — the single interactive color; it appears only on things you click or must notice (buttons, key highlights), never on large fills or backgrounds.
- `primary`, `accent`, `button_bg` are all `#CD4C20` — one role, not several (your action color).
- **accent** `#CD4C20` — 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** `#0000EE` — inline text links and link-styled controls.
- **secondary** `#B85021` — 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): `#A5A5A5` 30.3% · `#FFFFFF` 23% · `#343035` 15.7% · `#504441` 11.5%

## Typography

- Heading: **GTUltra** _(free fallback: Newsreader)_
- Body: **Lato**

| Role | Size / weight · line-height · tracking |
|------|------------------------------------------|
| hero | 70px / 900 · lh 77px |
| h2 | 32px / 400 · lh 42px |
| h3 | 25px / 400 · lh 31px |
| body | 13px / 400 · lh 21px · tracking 0.33px |
| small | 12px / 700 · lh 18px · tracking 1px |
| eyebrow | 13px / 800 · tracking 1.95px |

- Weight ladder: 400 · 700 · 800 · 900 — use these exact measured weights, not the 400/600 defaults.

> **Fonts —** GTUltra may be proprietary — safe free fallback: Newsreader (Google Fonts). Lato — free, on Google.

## Spacing
- base unit: 4px (inferred from the measured scale)
- measured scale: 2px, 3px, 4px, 5px, 7px, 11px, 14px, 18px, 21px, 28px — snap all gaps/padding to these

## Radius
- base: 0px
- button: 4px
- card: 5px
- pill: 9999px
- sharp: 3px

## Buttons

| Button | Fill / text | Border | Radius | Padding | Font | Shadow |
|--------|-------------|--------|--------|---------|------|--------|
| primary | `#CD4C20` / `#FFFFFF` | none | 3.5px | 7px 14px 7px 14px | 800 13px / 1.95px | rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0.3) 0px 27px 15px -30px, rgba(0, 0, 0, 0.5) 0px 11px 9px -10px |
| secondary | `#FFFFFF` / `#CD4C20` | none | 0px | — | — | 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, 0.3) 0px 20px 10px -35px, rgba(0, 0, 0, 0.5) 0px 4px 9px -5px` · background `#B85021`
- primary focus: outline `2px solid rgba(0, 0, 0, 0)`
- transition: `color 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, 0.3) 0px 27px 15px -30px, rgba(0, 0, 0, 0.5) 0px 11px 9px -10px`
- card: `rgba(0, 0, 0, 0.5) 0px 17px 9px -15px`
- button: `rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0.3) 0px 27px 15px -30px, rgba(0, 0, 0, 0.5) 0px 11px 9px -10px`

## Motion
- durations: 150ms (dominant) · 200ms · 300ms
- easings: `cubic-bezier(0.4, 0, 0.2, 1)` (dominant) · `ease`
- animated properties: transform, background-color, opacity, 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 |
|-------|-------|
| `--color-surface-primary` | `#f7f7f7` |
| `--modal-header-color` | `#CD4C20` |
| `--color-grey-200` | `#efefef` |
| `--link-color-text` | `#CD4C20` |
| `--color-text-brand` | `#CD4C20` |
| `--color-grey-100` | `#f7f7f7` |
| `--color-grey-600` | `#333333` |
| `--color-text-inverted` | `#ffffff` |
| `--color-text-secondary` | `#666666` |
| `--color-text-tertiary` | `#9b9b9b` |
| `--color-functional-error` | `#eb340a` |
| `--color-surface-secondary` | `#dbdbdb` |

_…and 12 more measured on the page._

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

## Layout (measured)
- container max 1202px
- nav: 30px absolute

| Section (y) | Height | Cols | Gap | Pad y | Split |
|---|---|---|---|---|---|
| 3965 | 518 | — | — | 0/0 | — |

## Motion choreography (measured)
Load order: `button.hidden` @0ms
- overlay dialog (auto-opened): panel #FFFFFF · r 0px

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

## Components (measured)
- input: h 34px · r 0px · bg #FFFFFF · placeholder #B0B0B0
- link: #CD4C20 · underline

## Responsive (measured)
- breakpoints: 480px · 527px · 549px · 768px · 930px · 980px
- mobile (390px): hero 32px · body 14px · 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/bellroy

Export: Tailwind v4 (@theme)

@theme {
  /* action color #CD4C20 — the one interactive color; buttons/links/emphasis only, never large fills. */
  --color-bg: #BFBFBF;
  --color-surface: #B4B4B4;
  --color-border: #A3A3A4;
  --color-text: #0A0A0B;
  --color-text-muted: #4E4E4F;
  --color-primary: #CD4C20;  /* primary brand / action color. */
  --color-accent: #CD4C20;  /* 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: #0000EE;  /* inline text links and link-styled controls. */
  --color-secondary: #B85021;  /* 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: #CD4C20;  /* primary-button fill — the main call-to-action color. */
  --color-button-text: #FFFFFF;
  /* fonts: GTUltra may be proprietary — safe free fallback: Newsreader (Google Fonts). Lato — free, on Google. */
  --font-heading: "GTUltra", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "Lato", system-ui, -apple-system, 'Segoe UI', sans-serif;
  /* measured weights: 400, 700, 800, 900 — use these, not 400/600 */
  --text-hero: 70px; --font-weight-hero: 900; --leading-hero: 77px;
  --text-h2: 32px; --font-weight-h2: 400; --leading-h2: 42px;
  --text-h3: 25px; --font-weight-h3: 400; --leading-h3: 31px;
  --text-body: 13px; --font-weight-body: 400; --leading-body: 21px; --tracking-body: 0.33px;
  --text-small: 12px; --font-weight-small: 700; --leading-small: 18px; --tracking-small: 1px;
  --text-eyebrow: 13px; --font-weight-eyebrow: 800; --tracking-eyebrow: 1.95px;
  --radius-base: 0px;
  --radius-button: 4px;
  --radius-card: 5px;
  --radius-pill: 9999px;
  --radius-sharp: 3px;
  --shadow-card: rgba(0, 0, 0, 0.5) 0px 17px 9px -15px;
  --shadow-subtle: rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0.3) 0px 27px 15px -30px, rgba(0, 0, 0, 0.5) 0px 11px 9px -10px;
  --color-btn-hover: #B85021;  /* measured primary hover fill */
  --outline-focus: 2px solid rgba(0, 0, 0, 0);  /* 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;
  --spacing: 4px;  /* measured base — drives the p-*/gap-* scale. steps seen on the page: 2, 3, 4, 5, 7, 11, 14, 18, 21, 28px */
}

Export: CSS variables

:root {
  /* action color #CD4C20 — the one interactive color; buttons/links/emphasis only, never large fills. */
  --bg: #BFBFBF;
  --surface: #B4B4B4;
  --border: #A3A3A4;
  --text: #0A0A0B;
  --text-muted: #4E4E4F;
  --primary: #CD4C20;  /* primary brand / action color. */
  --accent: #CD4C20;  /* 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: #0000EE;  /* inline text links and link-styled controls. */
  --secondary: #B85021;  /* 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: #CD4C20;  /* primary-button fill — the main call-to-action color. */
  --button-text: #FFFFFF;
  --font-heading: "GTUltra", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "Lato", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --text-hero: 70px; --weight-hero: 900; --leading-hero: 77px;
  --text-h2: 32px; --weight-h2: 400; --leading-h2: 42px;
  --text-h3: 25px; --weight-h3: 400; --leading-h3: 31px;
  --text-body: 13px; --weight-body: 400; --leading-body: 21px; --tracking-body: 0.33px;
  --text-small: 12px; --weight-small: 700; --leading-small: 18px; --tracking-small: 1px;
  --text-eyebrow: 13px; --weight-eyebrow: 800; --tracking-eyebrow: 1.95px;
  --radius: 0px;
  --radius-button: 4px;
  --radius-card: 5px;
  --radius-pill: 9999px;
  --radius-sharp: 3px;
  --shadow-card: rgba(0, 0, 0, 0.5) 0px 17px 9px -15px;
  --shadow-subtle: rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0.3) 0px 27px 15px -30px, rgba(0, 0, 0, 0.5) 0px 11px 9px -10px;
  --btn-bg-hover: #B85021;
  --focus-ring: 2px solid rgba(0, 0, 0, 0);
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 150ms;
  --duration-base: 200ms;
  --duration-slow: 300ms;
}

/* their own tokens, verbatim from the site's :root */
:root {
  --color-surface-primary: #f7f7f7;
  --modal-header-color: #CD4C20;
  --color-grey-200: #efefef;
  --link-color-text: #CD4C20;
  --color-text-brand: #CD4C20;
  --color-grey-100: #f7f7f7;
  --color-grey-600: #333333;
  --color-text-inverted: #ffffff;
  --color-text-secondary: #666666;
  --color-text-tertiary: #9b9b9b;
  --color-functional-error: #eb340a;
  --color-surface-secondary: #dbdbdb;
}
/* fonts: GTUltra may be proprietary — safe free fallback: Newsreader (Google Fonts). Lato — free, on Google. */