MozaikaDesign system

Railway — Design System

dark · modern · medium · tailwind · confidence 92%

Railway is infrastructure told as a night-train story: a deep aubergine #13111C sky, painterly mountain vistas behind the deploy card, and IBM Plex Serif headlines (54px/500) that give a devops tool the voice of a novel. Inter carries the 18px body while glowing track-lines and canvas-drawn diagrams animate the scroll into a continuous journey. Buttons stay quiet and borderless; the romance is in the atmosphere, not the chrome — a rare serif-led, illustration-first take on developer clouds.

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/railway.

Tokens

Railway's decoded design system: background #13111C, text #ECECEE, accent #553F83, link #291839, primary #1F132A; type scale h1 54px / h2 40px / body 18px; 4px spacing base; 6px base radius. The single interactive/action color is #553F83 — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

RoleValue
bg#13111C
surface#201E28
border#33313B
text#ECECEE
text_muted#99989E
primary#1F132A
accent#553F83
link#291839
secondary#553F83
button_bg#553F83
button_text#FFFFFF

Using these colors

Typography

Spacing

Radii

Per-section tokens (18)

Export: DESIGN.md

# Railway — Design System

> dark, modern, medium, tailwind

Railway is infrastructure told as a night-train story: a deep aubergine #13111C sky, painterly mountain vistas behind the deploy card, and IBM Plex Serif headlines (54px/500) that give a devops tool the voice of a novel. Inter carries the 18px body while glowing track-lines and canvas-drawn diagrams animate the scroll into a continuous journey. Buttons stay quiet and borderless; the romance is in the atmosphere, not the chrome — a rare serif-led, illustration-first take on developer clouds.

## Colors

| Role | Value |
|------|-------|
| bg | `#13111C` |
| surface | `#201E28` |
| border | `#33313B` |
| text | `#ECECEE` |
| text_muted | `#99989E` |
| primary | `#1F132A` |
| accent | `#553F83` |
| link | `#291839` |
| secondary | `#553F83` |
| button_bg | `#553F83` |
| button_text | `#FFFFFF` |

**Using these colors**

- **Action color** `#553F83` — the single interactive color; it appears only on things you click or must notice (buttons, key highlights), never on large fills or backgrounds.
- `accent`, `secondary`, `button_bg` are all `#553F83` — one role, not several (your action color).
- **accent** `#553F83` — 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** `#1F132A` — a brand color — but the call-to-action uses #553F83, not this.
- **link** `#291839` — fails contrast on the background (~1.1:1) — this is a dark UI color, NOT a readable link; use the text or action color for links (verify against the reference).

## Typography

- Heading: **IBM Plex Serif** _(free fallback: Newsreader)_
- Body: **Inter**
- h1: 54px
- h2: 40px
- body: 18px

> **Fonts —** IBM Plex Serif may be proprietary — safe free fallback: Newsreader (Google Fonts). Inter — free, on Google.

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

## Radius
- base: 6px
- button: 8px

## Primary button
- bg `#553F83` · text `#FFFFFF` · 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.

Export: Tailwind v4 (@theme)

@theme {
  /* action color #553F83 — the one interactive color; buttons/links/emphasis only, never large fills. */
  --color-bg: #13111C;
  --color-surface: #201E28;
  --color-border: #33313B;
  --color-text: #ECECEE;
  --color-text-muted: #99989E;
  --color-primary: #1F132A;  /* a brand color — but the call-to-action uses #553F83, not this. */
  --color-accent: #553F83;  /* 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: #291839;  /* fails contrast on the background (~1.1:1) — this is a dark UI color, NOT a readable link; use the text or action color for links (verify against the reference). */
  --color-secondary: #553F83;  /* same color as the action (see accent). */
  --color-button-bg: #553F83;  /* primary-button fill — the main call-to-action color. */
  --color-button-text: #FFFFFF;
  /* fonts: IBM Plex Serif may be proprietary — safe free fallback: Newsreader (Google Fonts). Inter — free, on Google. */
  --font-heading: "IBM Plex Serif", "Newsreader", Georgia, 'Times New Roman', serif;
  --font-body: "Inter", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --text-h1: 54px;
  --text-h2: 40px;
  --text-body: 18px;
  --radius-base: 6px;
  --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 #553F83 — the one interactive color; buttons/links/emphasis only, never large fills. */
  --bg: #13111C;
  --surface: #201E28;
  --border: #33313B;
  --text: #ECECEE;
  --text-muted: #99989E;
  --primary: #1F132A;  /* a brand color — but the call-to-action uses #553F83, not this. */
  --accent: #553F83;  /* 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: #291839;  /* fails contrast on the background (~1.1:1) — this is a dark UI color, NOT a readable link; use the text or action color for links (verify against the reference). */
  --secondary: #553F83;  /* same color as the action (see accent). */
  --button-bg: #553F83;  /* primary-button fill — the main call-to-action color. */
  --button-text: #FFFFFF;
  --font-heading: "IBM Plex Serif", "Newsreader", Georgia, 'Times New Roman', serif;
  --font-body: "Inter", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --radius: 6px;
  --radius-button: 8px;
}
/* fonts: IBM Plex Serif may be proprietary — safe free fallback: Newsreader (Google Fonts). Inter — free, on Google. */