# Lucide design system

> Lucide design system measured from lucide.dev: Inter font, #F67373 primary on #FFFFFF, 12 color hex codes, type scale, spacing and a free DESIGN.md.

Canonical page: https://sitepeel.dev/design-md/lucide.dev/

Lucide’s website (lucide.dev) uses the Inter font and #F67373 as its main color on a white background. Measured by Sitepeel on November 4, 2026.

## What font does Lucide use?

Lucide uses Inter (weights 400, 500 and 600) on lucide.dev. Page titles are 21px at weight 500 and body text is 16px. Measured on November 4, 2026.

- Inter (weights 400, 500, 600)
- ui-monospace (weights 400)

## Lucide colors: palette and hex codes

Lucide’s main colors are #FFFFFF (white) for the background, #3C3C43 (cool graphite) for text and #F67373 (light red) as the main accent, with #F56565 (red) and #DC5A5A (red) as other accents. Measured on November 4, 2026.

- #FFFFFF: white
- #3C3C43: cool graphite
- #67676C: slate
- #F6F6F7: snow
- #EBEBEF: mist
- #E2E2E3: mist
- #C2C2C4: silver
- #F67373: light red

## What is Lucide built with?

Lucide’s website (lucide.dev) is built with VitePress, Vue.js, Headless UI, Vercel and Lucide. Measured on November 4, 2026.

- JavaScript framework: VitePress 1.6.4, Vue.js 3.5.44
- Hosting & CDN: Vercel
- UI & CSS: Headless UI
- Fonts & icons: Lucide

## Questions and answers

### What font does Lucide use?

Lucide’s website uses Inter (weights 400, 500 and 600). Page titles are 21px at weight 500 and body text is 16px. Measured on November 4, 2026.

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

On lucide.dev: #FFFFFF (white) for the background, #3C3C43 (cool graphite) for text and #F67373 (light red) as the main accent, with #F56565 (red) and #DC5A5A (red) as other accents. The color palette above lists all 12 colors with their hex codes and where each one is used.

### What is the Lucide design system?

The design system on this page is lucide.dev’s, as measured on November 4, 2026: Inter type, #F67373 as the main color, 8px corners and a 4px spacing grid, written down as a DESIGN.md. It is not Lucide’s own documentation.

### What is Lucide built with?

Lucide’s website (lucide.dev) is built with VitePress, Vue.js, Headless UI, Vercel and Lucide. Measured on November 4, 2026.

### What is the Lucide DESIGN.md?

A plain-text file with Lucide’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 Lucide’s official design system?

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

### Can I use Lucide’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 Lucide’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/lucide.dev/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 Lucide.

## The DESIGN.md file

```markdown
---
version: alpha
name: Lucide
description: "Light interface measured from lucide.dev: Inter type, light red accents, tonal surfaces and 8px corners."
colors:
  background: "#FFFFFF"
  surface: "#FFFFFF"
  on-surface: "#3C3C43"
  on-background: "#3C3C43"
  on-surface-variant: "#67676C"
  surface-container-low: "#F6F6F7"
  surface-container: "#EBEBEF"
  overlay: "#8E96AA24"
  outline: "#E2E2E3"
  outline-variant: "#C2C2C4"
  primary: "#F67373"
  on-primary: "#3C3C43"
  secondary: "#F56565"
  tertiary: "#DC5A5A"
typography:
  headline-display:
    fontFamily: Inter
    fontSize: 21px
    fontWeight: 500
    lineHeight: 1.14
  body-md:
    fontFamily: Inter
    fontSize: 16px
    fontWeight: 400
    lineHeight: 1.5
  label-lg:
    fontFamily: Inter
    fontSize: 16px
    fontWeight: 600
    lineHeight: 1.5
  label-md:
    fontFamily: Inter
    fontSize: 14px
    fontWeight: 500
    lineHeight: 1.71
  label-sm:
    fontFamily: Inter
    fontSize: 13px
    fontWeight: 600
    lineHeight: 1.54
  code:
    fontFamily: ui-monospace
    fontSize: 13px
    fontWeight: 400
    lineHeight: 1.85
    letterSpacing: 0.077em
rounded:
  sm: 6px
  md: 8px
  lg: 12px
  xl: 20px
  full: 9999px
spacing:
  base: 4px
  xs: 2px
  sm: 8px
  md: 12px
  lg: 24px
  xl: 48px
  gutter: 8px
  margin: 32px
components:
  button-primary:
    backgroundColor: "{colors.primary}"
    textColor: "{colors.on-primary}"
    typography: "{typography.label-md}"
    rounded: 2px
    padding: 0px 12px
    height: 64px
  button-outline:
    backgroundColor: "{colors.surface-container}"
    textColor: "{colors.on-surface}"
    typography: "{typography.label-md}"
    rounded: "{rounded.xl}"
    padding: 0px 20px
    height: 40px
  button-outline-hover:
    backgroundColor: "#E4E4E9"
  button-secondary:
    backgroundColor: "{colors.secondary}"
    textColor: "{colors.background}"
    typography: "{typography.label-md}"
    rounded: "{rounded.xl}"
    padding: 0px 20px
    height: 40px
  button-ghost:
    textColor: "{colors.on-surface}"
    typography: "{typography.code}"
    rounded: 0px
    padding: 0px 12px
  input-field:
    textColor: "{colors.on-surface-variant}"
    typography: "{typography.code}"
    rounded: 0px
    padding: 0px
  card:
    backgroundColor: "{colors.surface-container-low}"
    textColor: "{colors.on-surface}"
    typography: "{typography.body-md}"
    rounded: "{rounded.lg}"
    padding: 24px
---

# Lucide Design System

## Overview

Lucide describes itself as: “Beautiful & consistent icon toolkit made by the community.” The interface is light, built on **White (#FFFFFF)** with **Cool Graphite (#3C3C43)** text, and **Light Red (#F67373)** as the main accent.

Type is set in **Inter**, with **ui-monospace** for code. Headlines run large; body text is 16px. Depth comes from soft drop shadows. Corners are mostly 8px.

Measured from [lucide.dev](https://lucide.dev/) on November 4, 2026 at 1440×900 and 390×844 from 315 rendered elements. Values are computed styles from the live page, not the original source files.

## Colors

The palette has 12 roles.

- **White (#FFFFFF):** Page background, seen 70 times. Token `background`, CSS `--vp-local-nav-bg-color`.
- **Cool Graphite (#3C3C43):** Primary text and headings, seen 38 times. Token `on-surface`, CSS `--vp-code-tab-hover-text-color`.
- **Slate (#67676C):** Secondary text, seen 21 times. Token `on-surface-variant`, CSS `--vp-code-block-color`.
- **Snow (#F6F6F7):** Raised areas one step from the page, seen 8 times. Token `surface-container-low`, CSS `--vp-code-block-bg`.
- **Mist (#EBEBEF):** Cards and panels, seen 3 times. Token `surface-container`, CSS `--vp-c-default-3`.
- **Blue 14% (#8E96AA24):** Translucent fill for cards and controls, seen 2 times. Token `overlay`, CSS `--vp-badge-info-bg`.
- **Mist (#E2E2E3):** Borders and dividers, seen 9 times. Token `outline`, CSS `--vp-code-block-divider-color`.
- **Silver (#C2C2C4):** Secondary dividers, seen 2 times. Token `outline-variant`.
- **Light Red (#F67373):** Primary buttons and calls to action, seen 7 times. Token `primary`, CSS `--vp-c-note-1`.
- **Cool Graphite (#3C3C43):** Text and icons on primary. Token `on-primary`.
- **Red (#F56565):** Secondary buttons, seen 3 times. Token `secondary`, CSS `--vp-c-tip-3`.
- **Red (#DC5A5A):** Accent (CSS variable). Token `tertiary`.

## Typography

**Inter** and **ui-monospace** (monospace) share the interface. Fallback stack: `Inter, ui-sans-serif, system-ui, sans-serif`.

- **headline-display:** Inter 21px at weight 500, line height 1.14. Page title (h1).
- **body-md:** Inter 16px at weight 400, line height 1.5. Body text.
- **label-lg:** Inter 16px at weight 600, line height 1.5. Large buttons and tabs.
- **label-md:** Inter 14px at weight 500, line height 1.71. Buttons, navigation and labels.
- **label-sm:** Inter 13px at weight 600, line height 1.54. Small labels and badges.
- **code:** ui-monospace 13px at weight 400, line height 1.85, tracking 0.077em. Code and technical values.

## Layout

Spacing follows a 4px grid: 92% of measured gaps and paddings are multiples of 4px.

- **Scale:** xs 2px, sm 8px, md 12px, lg 24px, xl 48px.
- **Gaps:** 8px is the most common gap in flex and grid layouts.
- **Page margin:** 32px on each side of full-width sections.

## Elevation & Depth

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

- `rgba(0, 0, 0, 0.04) 0px 1px 2px 0px, rgba(0, 0, 0, 0.06) 0px 1px 2px 0px`
- `rgba(0, 0, 0, 0.1) 0px 12px 32px 0px, rgba(0, 0, 0, 0.08) 0px 2px 6px 0px`
- `rgba(0, 0, 0, 0.12) 0px 14px 44px 0px, rgba(0, 0, 0, 0.12) 0px 3px 9px 0px`

## Shapes

Most elements use 8px corners. Measured radii, most used first:

- **md (8px):** 68 elements.
- **lg (12px):** 32 elements.
- **xl (20px):** 20 elements.
- **sm (6px):** 8 elements.
- **full (9999px):** 8 elements.

## Components

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

- **button-primary (“Icons”):** #F67373 fill, #3C3C43 text, 14px/500, 2px radius, padding 0px 12px.
- **button-outline (“Get Started”):** #EBEBEF fill, #3C3C43 text, 14px/600, 20px radius, padding 0px 20px.
- **button-outline-hover:** background #E4E4E9, text #3C3C43 on hover.
- **button-secondary (“View all icons”):** #F56565 fill, #FFFFFF text, 14px/600, 20px radius, padding 0px 20px.
- **button-ghost (“Resources”):** transparent fill, #3C3C43 text, 13.3333px/400, padding 0px 12px.
- **input-field:** transparent fill, #67676C text, 13.3333px/400, padding 0px.
- **card:** #F6F6F7 fill, #3C3C43 text, 16px/400, 12px radius, padding 24px, border 1px solid #E2E2E3.

## Do's and Don'ts

- Do use #FFFFFF for the page and lift surfaces in small steps: #F6F6F7, #EBEBEF.
- Do keep text in 2 levels: #3C3C43, #67676C.
- Do reserve #F67373 for primary actions and key highlights.
- Do keep spacing on the 4px grid.
- Do use 8px corners on most elements; larger surfaces also use 12px, 20px and 6px.
- Don't introduce new font families beyond Inter and ui-monospace.
- Don't use #F67373 for large backgrounds or body text.
- Don't make interface transitions slower than 0.5s.

## Motion

Interface transitions are quick: 0.25s, 0.15s, 0.5s, 0.4s.

- **Easing:** `ease`, `ease-in`, `cubic-bezier(0.34, 1.56, 0.64, 1)`.
- **Reduced motion:** the page responds to `prefers-reduced-motion`.

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

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