MozaikaDesign system

Arc — Design System

light · modern · medium · custom · confidence 92%

The full decoded design system for Arc: color roles, type scale, spacing, radii and paste-ready DESIGN.md / Tailwind / CSS exports.

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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/ds/arc.

Tokens

Arc's decoded design system: background #FFFCEC, text #0A0A0B, accent #2702C2, link #3139FB, primary #2702C2; type scale h1 32px / h2 32px / body 20px; 8px spacing base; 0px base radius. The single interactive/action color is #2702C2 — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

RoleValue
bg#FFFCEC
surface#F0EDDE
border#DAD7CA
text#0A0A0B
text_muted#676560
primary#2702C2
accent#2702C2
link#3139FB
button_bg#2702C2
button_text#FFFFFF

Using these colors

Typography

Spacing

Radii

Shadow

rgba(0, 0, 0, 0.1) 0px 5px 5px 0px

Per-section tokens (9)

Export: DESIGN.md

# Arc — Design System

> light, modern, medium, custom

## Colors

| Role | Value |
|------|-------|
| bg | `#FFFCEC` |
| surface | `#F0EDDE` |
| border | `#DAD7CA` |
| text | `#0A0A0B` |
| text_muted | `#676560` |
| primary | `#2702C2` |
| accent | `#2702C2` |
| link | `#3139FB` |
| button_bg | `#2702C2` |
| button_text | `#FFFFFF` |

**Using these colors**

- **Action color** `#2702C2` — 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 `#2702C2` — one role, not several (your action color).
- **accent** `#2702C2` — 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** `#3139FB` — inline text links and link-styled controls.

## Typography

- Heading: **Marlin Soft** _(free fallback: Newsreader)_
- Body: **Segoe UI** _(free fallback: Newsreader)_
- h1: 32px
- h2: 32px
- body: 20px

> **Fonts —** Marlin Soft may be proprietary — safe free fallback: Newsreader (Google Fonts). Segoe UI may be proprietary — safe free fallback: Newsreader (Google Fonts).

## Spacing
- base unit: 8px
- scale: 4px, 8px, 12px, 16px, 24px, 32px, 48px, 64px

## Radius
- base: 0px
- button: 10px

## Primary button
- bg `#2702C2` · text `#FFFFFF` · radius 10px

## 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.

Export: Tailwind v4 (@theme)

@theme {
  /* action color #2702C2 — the one interactive color; buttons/links/emphasis only, never large fills. */
  --color-bg: #FFFCEC;
  --color-surface: #F0EDDE;
  --color-border: #DAD7CA;
  --color-text: #0A0A0B;
  --color-text-muted: #676560;
  --color-primary: #2702C2;  /* primary brand / action color. */
  --color-accent: #2702C2;  /* 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: #3139FB;  /* inline text links and link-styled controls. */
  --color-button-bg: #2702C2;  /* primary-button fill — the main call-to-action color. */
  --color-button-text: #FFFFFF;
  /* fonts: Marlin Soft may be proprietary — safe free fallback: Newsreader (Google Fonts). Segoe UI may be proprietary — safe free fallback: Newsreader (Google Fonts). */
  --font-heading: "Marlin Soft", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "Segoe UI", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --text-h1: 32px;
  --text-h2: 32px;
  --text-body: 20px;
  --radius-base: 0px;
  --radius-button: 10px;
  --spacing-1: 4px;
  --spacing-2: 8px;
  --spacing-3: 12px;
  --spacing-4: 16px;
  --spacing-5: 24px;
  --spacing-6: 32px;
  --spacing-7: 48px;
  --spacing-8: 64px;
}

Export: CSS variables

:root {
  /* action color #2702C2 — the one interactive color; buttons/links/emphasis only, never large fills. */
  --bg: #FFFCEC;
  --surface: #F0EDDE;
  --border: #DAD7CA;
  --text: #0A0A0B;
  --text-muted: #676560;
  --primary: #2702C2;  /* primary brand / action color. */
  --accent: #2702C2;  /* 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: #3139FB;  /* inline text links and link-styled controls. */
  --button-bg: #2702C2;  /* primary-button fill — the main call-to-action color. */
  --button-text: #FFFFFF;
  --font-heading: "Marlin Soft", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "Segoe UI", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --radius: 0px;
  --radius-button: 10px;
}
/* fonts: Marlin Soft may be proprietary — safe free fallback: Newsreader (Google Fonts). Segoe UI may be proprietary — safe free fallback: Newsreader (Google Fonts). */