Starry Night UI — Design System

dark · modern · medium · react · confidence 95%

The Starry Night theme — a cohesive shadcn/ui design system (measured tokens).

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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/starry-night-ui.

Tokens

Starry Night UI's decoded design system: background #181A24, text #E6EAF3, accent #3A5BA0, link #3A5BA0, primary #3A5BA0; type scale h1 36px / h2 24px / body 14px; 4px spacing base; 8px base radius. The single interactive/action color is #3A5BA0 — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

Using these colors

• Action color #3A5BA0 — the single interactive color; only on things you click or must notice, never large fills.
• primary, accent, link, button_bg are all #3A5BA0 — one role, not several (the action color).
• accent #3A5BA0 — 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.

Typography

• Heading: Libre Baskerville
• Body: Libre Baskerville
• h1: 36px
• h2: 24px
• body: 14px

Spacing

• base unit: 4px
• scale: 2px, 4px, 6px, 8px, 12px, 16px, 24px, 32px

Radii

• base: 8px
• button: 8px

Export: DESIGN.md

# Starry Night UI — Design System

> dark, modern, medium, react

The Starry Night theme — a cohesive shadcn/ui design system (measured tokens).

## Colors

| Role | Value |
|------|-------|
| bg | `#181A24` |
| surface | `#242630` |
| border | `#363943` |
| text | `#E6EAF3` |
| text_muted | `#979AA4` |
| primary | `#3A5BA0` |
| accent | `#3A5BA0` |
| link | `#3A5BA0` |
| button_bg | `#3A5BA0` |
| button_text | `#FFE066` |

**Using these colors**

- **Action color** `#3A5BA0` — 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`, `link`, `button_bg` are all `#3A5BA0` — one role, not several (your action color).
- **accent** `#3A5BA0` — 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.

## Typography

- Heading: **Libre Baskerville** _(free fallback: Newsreader)_
- Body: **Libre Baskerville** _(free fallback: Newsreader)_
- h1: 36px
- h2: 24px
- body: 14px

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

## Spacing
- base unit: 4px
- scale: 2px, 4px, 6px, 8px, 12px, 16px, 24px, 32px

## Radius
- base: 8px
- button: 8px

## Primary button
- bg `#3A5BA0` · text `#FFE066` · radius 8px

## 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.

---

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

Export: Tailwind v4 (@theme)

@theme {
  /* action color #3A5BA0 — the one interactive color; buttons/links/emphasis only, never large fills. */
  --color-bg: #181A24;
  --color-surface: #242630;
  --color-border: #363943;
  --color-text: #E6EAF3;
  --color-text-muted: #979AA4;
  --color-primary: #3A5BA0;  /* primary brand / action color. */
  --color-accent: #3A5BA0;  /* 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: #3A5BA0;  /* inline text links — shares the action color. */
  --color-button-bg: #3A5BA0;  /* primary-button fill — the main call-to-action color. */
  --color-button-text: #FFE066;
  /* fonts: Libre Baskerville may be proprietary — safe free fallback: Newsreader (Google Fonts). */
  --font-heading: "Libre Baskerville", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "Libre Baskerville", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --text-h1: 36px;
  --text-h2: 24px;
  --text-body: 14px;
  --radius-base: 8px;
  --radius-button: 8px;
  --spacing-1: 2px;
  --spacing-2: 4px;
  --spacing-3: 6px;
  --spacing-4: 8px;
  --spacing-5: 12px;
  --spacing-6: 16px;
  --spacing-7: 24px;
  --spacing-8: 32px;
}

Export: CSS variables

:root {
  /* action color #3A5BA0 — the one interactive color; buttons/links/emphasis only, never large fills. */
  --bg: #181A24;
  --surface: #242630;
  --border: #363943;
  --text: #E6EAF3;
  --text-muted: #979AA4;
  --primary: #3A5BA0;  /* primary brand / action color. */
  --accent: #3A5BA0;  /* 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: #3A5BA0;  /* inline text links — shares the action color. */
  --button-bg: #3A5BA0;  /* primary-button fill — the main call-to-action color. */
  --button-text: #FFE066;
  --font-heading: "Libre Baskerville", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "Libre Baskerville", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --radius: 8px;
  --radius-button: 8px;
}
/* fonts: Libre Baskerville may be proprietary — safe free fallback: Newsreader (Google Fonts). */