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Mono: sistema de diseño de documentación técnica

Web · Light · Minimal · Developer tools

Mono

Páginas blancas lisas, tipografía Geist y un solo azul cobalto, hechos para documentación y herramientas de desarrollo.

Mono es un sistema discreto para productos de desarrollo: páginas blancas, Geist y Geist Mono, bordes finos y un solo azul cobalto para enlaces y acciones principales. Los bloques de código, las tablas y las referencias de API son lo principal, no un añadido.

Preview

Rendered live from the tokens below, in the system's own fonts.

New in 2026Plan, ship and measure in one place

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Retention86%
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Use it in your project

Paste this into Codex or Claude Code. The agent saves the spec as DESIGN.md and follows it from then on.

This project uses the Mono design system. Its spec is at https://codexdesign.io/es/design-systems/mono.md. Save it as DESIGN.md in the project root and follow it for every screen from now on.

Tokens

Colors

Light theme

  • background#FFFFFFoklch(1 0 0)
  • foreground#0B0C0Eoklch(0.154 0.005 264.432)
  • card#FFFFFFoklch(1 0 0)
  • card-foreground#0B0C0Eoklch(0.154 0.005 264.432)
  • popover#FFFFFFoklch(1 0 0)
  • popover-foreground#0B0C0Eoklch(0.154 0.005 264.432)
  • primary#2450E6oklch(0.507 0.231 265.456)
  • primary-foreground#FFFFFFoklch(1 0 0)
  • secondary#F2F3F5oklch(0.964 0.003 264.542)
  • secondary-foreground#0B0C0Eoklch(0.154 0.005 264.432)
  • muted#F4F5F7oklch(0.97 0.003 264.542)
  • muted-foreground#5D6470oklch(0.501 0.021 261.29)
  • accent#EEF0F3oklch(0.954 0.005 258.325)
  • accent-foreground#0B0C0Eoklch(0.154 0.005 264.432)
  • destructive#C7271Foklch(0.539 0.196 28.712)
  • border#E3E5E9oklch(0.922 0.006 264.531)
  • input#D4D7DDoklch(0.879 0.009 264.518)
  • ring#2450E6oklch(0.507 0.231 265.456)
  • chart-1#2450E6oklch(0.507 0.231 265.456)
  • chart-2#0F9F6Eoklch(0.622 0.133 162.239)
  • chart-3#D97706oklch(0.666 0.157 58.318)
  • chart-4#DB2777oklch(0.592 0.218 0.584)
  • chart-5#64748Boklch(0.554 0.041 257.417)

Dark theme

  • background#0B0C0Eoklch(0.154 0.005 264.432)
  • foreground#EDEEF0oklch(0.949 0.003 264.542)
  • card#121316oklch(0.187 0.006 271.067)
  • card-foreground#EDEEF0oklch(0.949 0.003 264.542)
  • popover#121316oklch(0.187 0.006 271.067)
  • popover-foreground#EDEEF0oklch(0.949 0.003 264.542)
  • primary#6B8CFFoklch(0.671 0.174 269.263)
  • primary-foreground#0B0C0Eoklch(0.154 0.005 264.432)
  • secondary#1A1C20oklch(0.226 0.008 264.395)
  • secondary-foreground#EDEEF0oklch(0.949 0.003 264.542)
  • muted#16181Boklch(0.208 0.007 258.367)
  • muted-foreground#8E95A1oklch(0.668 0.02 261.32)
  • accent#1E2125oklch(0.246 0.009 255.592)
  • accent-foreground#EDEEF0oklch(0.949 0.003 264.542)
  • destructive#FF6B61oklch(0.71 0.183 26.597)
  • border#24272Coklch(0.272 0.01 260.702)
  • input#2D3036oklch(0.309 0.012 264.391)
  • ring#6B8CFFoklch(0.671 0.174 269.263)
  • chart-1#6B8CFFoklch(0.671 0.174 269.263)
  • chart-2#34D399oklch(0.773 0.153 163.223)
  • chart-3#FBBF24oklch(0.837 0.164 84.429)
  • chart-4#F472B6oklch(0.725 0.175 349.761)
  • chart-5#94A3B8oklch(0.711 0.035 256.788)

Fonts

Headings
Geist · 600
Body
Geist · 400
Monospace
Geist Mono

Type scale

  • display · 60/1.05 · -0.025emThe quick brown fox
  • h1 · 40/1.1 · -0.02emThe quick brown fox
  • h2 · 28/1.2 · -0.01emThe quick brown fox
  • h3 · 20/1.3The quick brown fox
  • body · 16/1.55The quick brown fox
  • small · 13/1.45The quick brown fox

Radius, spacing and shadow

Corner radiussm 4pxmd 6pxlg 8pxxl 12px
Spacingxs 4pxsm 8pxmd 16pxlg 24pxxl 48px
ShadowNone: depth comes from borders and color.

Layout

Max width
1280px
Text width
72ch
Columns
12
Gutter
24px

Best for

  • Documentación para desarrolladores y referencias de API
  • Herramientas de desarrollo y CLI
  • Sitios de proyectos de código abierto
  • Changelogs y blogs técnicos

Do's and don'ts

  • Muestra un ejemplo de código que funcione cerca del principio de cada página.
  • Pon cada comando, ruta y flag en Geist Mono.
  • No uses el azul para nada que no sea clicable.
  • No decores con degradados, ilustraciones ni resplandores.

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Un plugin independiente para Codex. No está afiliado a OpenAI ni cuenta con su respaldo.