# Jenkins design system

> Jenkins design system measured from jenkins.io: georgia font, #006CF6 primary on #FFFFFF, 8 color hex codes, type scale, spacing and a free DESIGN.md.

Canonical page: https://sitepeel.dev/design-md/jenkins.io/

Jenkins’s website (jenkins.io) uses the georgia font and #006CF6 as its main color on a white background. Measured by Sitepeel on November 4, 2026.

## What font does Jenkins use?

Jenkins uses georgia (weight 700) on jenkins.io. Page titles are 64px at weight 700 and body text is 16px. Measured on November 4, 2026.

- georgia (weights 700)
- system-ui (weights 400, 450, 500, 650, 700)

## Jenkins colors: palette and hex codes

Jenkins’s main colors are #FFFFFF (white) for the background, #000C1A (deep blue) for text and #006CF6 (vivid blue) as the main accent, with #9EC5FE (light blue) and #052C65 (deep blue) as other accents. Measured on November 4, 2026.

- #FFFFFF: white
- #000C1A: deep blue
- #006CF6: vivid blue
- #9EC5FE: light blue
- #052C65: deep blue

## What is Jenkins built with?

Jenkins’s website (jenkins.io) is built with jQuery, Lit, Bootstrap, Fastly and Font Awesome. Measured on November 4, 2026.

- JavaScript framework: jQuery 3.7.1, Lit 3.3.1
- UI & CSS: Bootstrap 5.3.8
- Fonts & icons: Font Awesome, Ionicons
- Media: YouTube
- Hosting & CDN: Fastly

## Questions and answers

### What font does Jenkins use?

Jenkins’s website uses georgia (weight 700). Page titles are 64px at weight 700 and body text is 16px. Measured on November 4, 2026.

### What are the Jenkins colors and hex codes?

On jenkins.io: #FFFFFF (white) for the background, #000C1A (deep blue) for text and #006CF6 (vivid blue) as the main accent, with #9EC5FE (light blue) and #052C65 (deep blue) as other accents. The color palette above lists all 8 colors with their hex codes and where each one is used.

### What is the Jenkins design system?

The design system on this page is jenkins.io’s, as measured on November 4, 2026: georgia type, #006CF6 as the main color and 10.56px corners, written down as a DESIGN.md. It is not Jenkins’s own documentation.

### What is Jenkins built with?

Jenkins’s website (jenkins.io) is built with jQuery, Lit, Bootstrap, Fastly and Font Awesome. The full tech stack Sitepeel found: jQuery, Lit, Bootstrap, Font Awesome, Ionicons, YouTube and Fastly. Measured on November 4, 2026.

### What is the Jenkins DESIGN.md?

A plain-text file with Jenkins’s measured colors, type, spacing, corners and components as tokens, plus short rules, in the DESIGN.md format Google published with Stitch. Your AI coding agent reads it and builds in this style. More about DESIGN.md.

### How do I use it with Claude Code or Cursor?

Download the file and put it in your project’s root folder, then ask your agent to follow DESIGN.md. Step-by-step guides: Claude Code, Cursor, Codex, GitHub Copilot.

### Is this Jenkins’s official design system?

No. Sitepeel measured it from jenkins.io’s public page on November 4, 2026. It is an independent analysis, not made or approved by Jenkins.

### Can I use Jenkins’s style in my own product?

Use it to learn, prototype and compare. For a real product, make the style your own, and never copy Jenkins’s logo, name, pictures or text.

### How accurate are the values?

Each value was measured on the rendered page after it fully loaded, on desktop and mobile: colors where they appear, type with tracking, spacing, corners, shadows and hover states. Sites change, so check the date at the top.

## Files

- [DESIGN.md](https://sitepeel.dev/design-md/jenkins.io/DESIGN.md): the plain file to put in your project.
- [All brand DESIGN.md files](https://sitepeel.dev/design-md/examples/index.md)

Independent analysis by Sitepeel (sitepeel.dev), not affiliated with Jenkins.

## The DESIGN.md file

```markdown
---
version: alpha
name: Jenkins
description: "Light interface measured from jenkins.io: georgia type with system-ui, vivid blue accents, flat surfaces and 10.56px corners."
colors:
  background: "#FFFFFF"
  surface: "#FFFFFF"
  on-surface: "#000C1A"
  on-background: "#000C1A"
  overlay: "#FFFFFF1A"
  overlay-strong: "#006CF61A"
  primary: "#006CF6"
  on-primary: "#FFFFFF"
  secondary: "#9EC5FE"
  tertiary: "#052C65"
typography:
  headline-display:
    fontFamily: georgia
    fontSize: 64px
    fontWeight: 700
  headline-lg:
    fontFamily: system-ui
    fontSize: 28px
    fontWeight: 700
    lineHeight: 1.2
  headline-md:
    fontFamily: system-ui
    fontSize: 21px
    fontWeight: 650
    lineHeight: 1.5
  body-md:
    fontFamily: system-ui
    fontSize: 16px
    fontWeight: 450
    lineHeight: 1.66
  body-lg:
    fontFamily: system-ui
    fontSize: 17.5px
    fontWeight: 500
    lineHeight: 1.3
  body-sm:
    fontFamily: system-ui
    fontSize: 13px
    fontWeight: 400
    lineHeight: 1.5
  label-md:
    fontFamily: system-ui
    fontSize: 16px
    fontWeight: 400
    lineHeight: 1.66
rounded:
  md: 10.56px
spacing:
  xs: 3px
  sm: 8px
  md: 16px
  lg: 20px
  xl: 64px
  gutter: 16px
components:
  button-ghost:
    rounded: "{rounded.md}"
    padding: 8px 18px
  card:
    textColor: "{colors.on-surface}"
    typography: "{typography.label-md}"
    rounded: "{rounded.md}"
    padding: 0px
  link:
    textColor: "{colors.primary}"
---

# Jenkins Design System

## Overview

Jenkins describes itself as: “Jenkins – an open source automation server which enables developers around the world to reliably build, test, and deploy their software” The interface is light, built on **White (#FFFFFF)** with **Deep Blue (#000C1A)** text, and **Vivid Blue (#006CF6)** as the main accent.

Type is set in **georgia** and **system-ui**. Headlines run large; body text is 16px. Depth comes from soft drop shadows. Corners are mostly 10.56px.

Measured from [jenkins.io](https://www.jenkins.io/) on November 4, 2026 at 1440×900 and 390×844 from 202 rendered elements. Values are computed styles from the live page, not the original source files.

## Colors

The palette has 8 roles.

- **White (#FFFFFF):** Page background, seen 6 times. Token `background`, CSS `--docsearch-footer-background`.
- **Deep Blue (#000C1A):** Primary text and headings, seen 31 times. Token `on-surface`, CSS `--color`.
- **White 10% (#FFFFFF1A):** Translucent fill for cards and controls, seen 2 times. Token `overlay`.
- **Vivid Blue 10% (#006CF61A):** Stronger translucent fill, seen 1 time. Token `overlay-strong`.
- **Vivid Blue (#006CF6):** Links and interactive text, seen 35 times. Token `primary`, CSS `--accent-color`.
- **White (#FFFFFF):** Text and icons on primary. Token `on-primary`.
- **Light Blue (#9EC5FE):** Accent (CSS variable). Token `secondary`.
- **Deep Blue (#052C65):** Accent (CSS variable). Token `tertiary`.

## Typography

**georgia** and **system-ui** share the interface. Fallback stack: `georgia`.

- **headline-display:** georgia 64px at weight 700. Page title (h1).
- **headline-lg:** system-ui 28px at weight 700, line height 1.2. Section headings (h2).
- **headline-md:** system-ui 21px at weight 650, line height 1.5. Sub-section headings.
- **body-md:** system-ui 16px at weight 450, line height 1.66. Body text.
- **body-lg:** system-ui 17.5px at weight 500, line height 1.3. Lead paragraphs.
- **body-sm:** system-ui 13px at weight 400, line height 1.5. Secondary and small text.
- **label-md:** system-ui 16px at weight 400, line height 1.66. Buttons, navigation and labels.

## Layout

Spacing is mostly on a 4px grid (72% of measured values), with some off-grid steps. Match the measured scale rather than rounding everything.

- **Scale:** xs 3px, sm 8px, md 16px, lg 20px, xl 64px.
- **Gaps:** 16px is the most common gap in flex and grid layouts.
- **Breakpoints:** 575.98px, 576px, 767.98px, 768px, 991.98px, 992px, 1199.98px, 1200px, 1399.98px, 1400px.

## Elevation & Depth

Raised elements use soft drop shadows. The most used recipes:

- `rgba(0, 0, 40, 0.3) 0px 30px 70px -50px`

## Shapes

Most elements use 10.56px corners. Measured radii, most used first:

- **md (10.56px):** 52 elements.

## Components

Measured from the rendered page. Token values reference the tokens above.

- **button-ghost (“Download”):** transparent fill, 14px/450, 10.56px radius, padding 8px 18px, shadow `rgba(0, 0, 0, 0) 0px 0px 0px 10px`.
- **card:** transparent fill, #000C1A text, 16px/400, 10.56px radius, padding 0px, shadow `rgba(0, 0, 40, 0.3) 0px 30px 70px -50px`.
- **link:** transparent fill, #006CF6 text, padding 0px.

## Do's and Don'ts

- Do use #FFFFFF for the page.
- Do use #006CF6 for links and interactive text.
- Do reuse the measured spacing steps (8px, 16px, 20px).
- Do use 10.56px corners on most elements.
- Don't introduce new font families beyond georgia and system-ui.
- Don't use #006CF6 for large backgrounds or body text.
- Don't make interface transitions slower than 0.6s.

## Motion

Interface transitions are quick: 0.2s, 0.3s, 0.6s, 0.15s.

- **Easing:** `ease`.
- **Reduced motion:** the page responds to `prefers-reduced-motion`.

Generated by [Sitepeel](https://sitepeel.dev/design-md/jenkins.io/), the free DESIGN.md generator (engine 2026.10.29+b828a475ee10).

```