# React Native design system

> React Native design system measured from reactnative.dev: Optimistic Display font, 10 color hex codes, type scale and spacing. Light theme with 12px corners.

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

React Native’s website (reactnative.dev) uses the Optimistic Display font and #087EA4 as its main color on a white background. Measured by Sitepeel on November 4, 2026.

## What font does React Native use?

React Native uses Optimistic Display (weights 300, 400 and 700) on reactnative.dev. Page titles are 40px at weight 700 and body text is 17px. Measured on November 4, 2026.

- Optimistic Display (weights 300, 400, 700)

## React Native colors: palette and hex codes

React Native’s main colors are #FFFFFF (white) for the background, #1C1E21 (charcoal) for text and #087EA4 (dark cyan) as the main accent, with #357DA1 (blue) and #72A1ED (blue) as other accents. Measured on November 4, 2026.

- #FFFFFF: white
- #1C1E21: charcoal
- #404756: dark blue
- #DFE1E6: cool mist
- #BCC1CD: cool silver
- #087EA4: dark cyan
- #357DA1: blue
- #72A1ED: blue

## What is React Native built with?

React Native’s website (reactnative.dev) is built with Docusaurus, React and Netlify. Measured on November 4, 2026.

- JavaScript framework: Docusaurus 3.10.2, React 19.2.8
- Hosting & CDN: Netlify
- Analytics: Google Analytics

## Questions and answers

### What font does React Native use?

React Native’s website uses Optimistic Display (weights 300, 400 and 700). Page titles are 40px at weight 700 and body text is 17px. Measured on November 4, 2026.

### What are the React Native colors and hex codes?

On reactnative.dev: #FFFFFF (white) for the background, #1C1E21 (charcoal) for text and #087EA4 (dark cyan) as the main accent, with #357DA1 (blue) and #72A1ED (blue) as other accents. The color palette above lists all 10 colors with their hex codes and where each one is used.

### What is the React Native design system?

The design system on this page is reactnative.dev’s, as measured on November 4, 2026: Optimistic Display type, #087EA4 as the main color and 12px corners, written down as a DESIGN.md. It is not React Native’s own documentation.

### What is React Native built with?

React Native’s website (reactnative.dev) is built with Docusaurus, React and Netlify. The full tech stack Sitepeel found: Docusaurus, React, Netlify and Google Analytics. Measured on November 4, 2026.

### What is the React Native DESIGN.md?

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

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

### Can I use React Native’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 React Native’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/reactnative.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 React Native.

## The DESIGN.md file

```markdown
---
version: alpha
name: React Native
description: "Light interface measured from reactnative.dev: Optimistic Display type, dark cyan accents, flat surfaces and pill-shaped controls."
colors:
  background: "#FFFFFF"
  surface: "#FFFFFF"
  on-surface: "#1C1E21"
  on-background: "#1C1E21"
  on-surface-variant: "#404756"
  outline: "#DFE1E6"
  outline-variant: "#BCC1CD"
  primary: "#087EA4"
  on-primary: "#FFFFFF"
  inverse-surface: "#111317EE"
  secondary: "#357DA1"
  tertiary: "#72A1ED"
typography:
  display-hero:
    fontFamily: Optimistic Display
    fontSize: 48px
    fontWeight: 700
    lineHeight: 1.25
  headline-display:
    fontFamily: Optimistic Display
    fontSize: 40px
    fontWeight: 700
    lineHeight: 1.25
  body-md:
    fontFamily: Optimistic Display
    fontSize: 17px
    fontWeight: 300
    lineHeight: 1.65
  body-lg:
    fontFamily: Optimistic Display
    fontSize: 20px
    fontWeight: 400
    lineHeight: 1.5
  body-sm:
    fontFamily: Optimistic Display
    fontSize: 14px
    fontWeight: 400
    lineHeight: 1.44
  display-hero-mobile:
    fontFamily: Optimistic Display
    fontSize: 40px
    fontWeight: 700
    lineHeight: 1.25
rounded:
  sm: 12px
  md: 32px
  full: 9999px
spacing:
  xs: 3px
  sm: 8px
  md: 16px
  lg: 17px
  xl: 34px
  gutter: 17px
  margin: 32px
components:
  button-primary:
    backgroundColor: "{colors.primary}"
    textColor: "{colors.on-primary}"
    typography: "{typography.body-md}"
    rounded: "{rounded.full}"
    padding: 10px 24px
    height: 50px
  button-primary-hover:
    backgroundColor: "#4E98B6"
  button-outline:
    backgroundColor: "{colors.background}"
    textColor: "#969FAF"
    typography: "{typography.body-md}"
    rounded: "{rounded.md}"
    padding: 0px 8px 0px 12px
    height: 36px
  button-ghost:
    backgroundColor: "{colors.background}"
    textColor: "{colors.on-surface-variant}"
    typography: "{typography.body-md}"
    rounded: "{rounded.full}"
    padding: 10px 24px
    height: 50px
  card:
    backgroundColor: "{colors.background}"
    textColor: "{colors.on-surface}"
    typography: "{typography.body-md}"
    rounded: "{rounded.sm}"
    padding: 0px
  link:
    textColor: "{colors.secondary}"
---

# React Native Design System

## Overview

React Native describes itself as: “A framework for building native apps for Android, iOS, and more using React” The interface is light, built on **White (#FFFFFF)** with **Charcoal (#1C1E21)** text, and **Dark Cyan (#087EA4)** as the main accent.

Type is set in **Optimistic Display**. Headlines run large; body text is 17px. Depth comes from soft drop shadows. Controls are pill-shaped.

Measured from [reactnative.dev](https://reactnative.dev/) on November 4, 2026 at 1440×900 and 390×844 from 265 rendered elements. Values are computed styles from the live page, not the original source files.

## Colors

The palette has 10 roles.

- **White (#FFFFFF):** Page background, seen 13 times. Token `background`, CSS `--ifm-background-surface-color`.
- **Charcoal (#1C1E21):** Primary text and headings, seen 20 times. Token `on-surface`, CSS `--ifm-blockquote-color`.
- **Dark Blue (#404756):** Secondary text, seen 14 times. Token `on-surface-variant`, CSS `--home-button-secondary-text`.
- **Cool Mist (#DFE1E6):** Borders and dividers, seen 10 times. Token `outline`.
- **Cool Silver (#BCC1CD):** Secondary dividers, seen 3 times. Token `outline-variant`.
- **Dark Cyan (#087EA4):** Primary buttons and calls to action, seen 2 times. Token `primary`, CSS `--logo`.
- **White (#FFFFFF):** Text and icons on primary. Token `on-primary`.
- **Cool Charcoal 93% (#111317EE):** High-contrast fills, seen 1 time. Token `inverse-surface`.
- **Blue (#357DA1):** Links and interactive text, seen 6 times. Token `secondary`, CSS `--ifm-link-hover-color`.
- **Blue (#72A1ED):** Accent (CSS variable). Token `tertiary`.

## Typography

**Optimistic Display** carries the whole interface. Fallback stack: `Optimistic Display, system-ui, -apple-system, sans-serif`.

- **display-hero:** Optimistic Display 48px at weight 700, line height 1.25 (40px on mobile). Oversized hero statements.
- **headline-display:** Optimistic Display 40px at weight 700, line height 1.25. Page title (h1).
- **body-md:** Optimistic Display 17px at weight 300, line height 1.65. Body text.
- **body-lg:** Optimistic Display 20px at weight 400, line height 1.5. Lead paragraphs.
- **body-sm:** Optimistic Display 14px at weight 400, line height 1.44. Secondary and small text.

## Layout

Spacing does not follow a strict grid: 46% of measured values are multiples of 4px, so match the measured steps rather than rounding to a grid.

- **Scale:** xs 3px, sm 8px, md 16px, lg 17px, xl 34px.
- **Gaps:** 17px 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, 0.03) 0px 4px 8px 0px`
- `rgba(0, 0, 0, 0.1) 0px 1px 2px 0px`

## Shapes

Interactive controls are pill-shaped. Measured radii, most used first:

- **sm (12px):** 28 elements.
- **md (32px):** 28 elements.
- **full (9999px):** 24 elements.

## Components

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

- **button-primary (“Get Started”):** #087EA4 fill, #FFFFFF text, 17px/700, 1683px radius, padding 10px 24px.
- **button-primary-hover:** background #4E98B6, text #FFFFFF on hover.
- **button-outline (“Search Ctrl K”):** #FFFFFF fill, #969FAF text, 17px/400, 32px radius, padding 0px 8px 0px 12px, border 1px solid #373940.
- **button-ghost (“Learn the Basics”):** #FFFFFF fill, #404756 text, 17px/700, 1683px radius, padding 10px 24px, border 1px solid #BCC1CD.
- **card:** #FFFFFF fill, #1C1E21 text, 17px/300, 12px radius, padding 0px, border 1px solid #DFE1E6, shadow `rgba(0, 0, 0, 0.03) 0px 4px 8px 0px`.
- **link:** transparent fill, #357DA1 text, padding 0px.

## Do's and Don'ts

- Do use #FFFFFF for the page.
- Do keep text in 2 levels: #1C1E21, #404756.
- Do reserve #087EA4 for primary actions and key highlights.
- Do reuse the measured spacing steps (8px, 16px, 17px).
- Do make buttons and chips fully rounded (9999px); most other elements use 12px corners.
- Don't introduce new font families beyond Optimistic Display.
- Don't use #087EA4 for large backgrounds or body text.
- Don't make interface transitions slower than 0.2s.

## Motion

Interface transitions are quick: 0.15s, 0.2s.

- **Easing:** `ease`, `cubic-bezier(0.08, 0.52, 0.52, 1)`, `cubic-bezier(0.4, 0, 0.2, 1)`.
- **Reduced motion:** the page responds to `prefers-reduced-motion`.

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

```