LaunchDarkly — decoded design system

launchdarkly.com · dark · modern · custom · deep decode — measured live

LaunchDarkly's design system, decoded live by Mozaika: measured color roles, type scale, buttons with real hover/focus states, motion and the brand's own tokens.

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/decode/launchdarkly.com.

Decoded design system

LaunchDarkly's decoded design system: background #191919, text #FFFFFF, accent #DDFF46, link #414042, primary #DDFF46; type scale h1 80px / h2 64px / body 16px; 4px spacing base; 16px base radius. The single interactive/action color is #DDFF46 — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

Using these colors

• Action color #DDFF46 — the single interactive color; only on things you click or must notice, never large fills.
• primary, accent, button_bg are all #DDFF46 — one role, not several (the action color).
• accent #DDFF46 — 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 #414042 — fails contrast on the background (~1.7:1) — this is a dark UI color, NOT a readable link; use the text or action color for links (verify against the reference).
• secondary #405BFF — optional secondary accent — LOW decode confidence; use rarely (a status color or a single decorative moment) or omit it entirely. Prefer one accent unless the reference clearly shows two.

Typography

• Heading: Arial
• Body: Arial
• Mono: monoFont
• h1: 80px
• h2: 64px
• body: 16px

Spacing

• base unit: 4px
• scale: 5px, 6px, 8px, 10px, 12px, 16px, 20px, 22px, 24px, 31px

Radii

• base: 16px
• button: 12px

Motion

Micro-interactions run at 300ms (dominant) with ease.

• durations: 300ms · 200ms · 160ms
• easings: ease · ease-in
• animated properties: transform, border-color, background-color, color

Native design tokens

…and 110 more measured on the page.

Button states (measured)

• primary hover: border 1px solid rgb(255, 255, 255) · color #FFFFFF
• primary focus: outline 1px auto rgb(16, 16, 16)

Layout (measured)

• container max-width: 1416px
• nav: 24px
• common grid: 2 columns

Motion choreography (measured)

Load order: div.primitives-module__Pbeuw → div.styles-module__5F-SCq__w×16 → button.styles-module__0nMkBW__p → div.Cost-module__gRBZNa__rev → div.Toxicity-module__IGtOPW_ → div.primitives-module__Pbeuw×4

Scroll reveal: 2 elements rest at a pre-reveal state, animate in over 22000ms.

Stagger: div ×16 — 80ms apart.

Input (measured)

height 56px · radius 0px

Responsive (measured)

• breakpoints: 500px · 659px · 768px · 1024px · 1099px · 1260px
• mobile (390px): hero 34px · nav inline

Install it

Drop this measured system into any shadcn/Tailwind project in one command:

npx shadcn add mozaika.design/r/decode/launchdarkly.com

Or as a Meta Astryx theme — a ready defineTheme file with the measured hover/press states baked in:

curl -o src/themes/launchdarkly.theme.ts https://mozaika.design/api/astryx/decode/launchdarkly.com.ts

registry item · astryx theme · or query it over MCP: get_design_system("LaunchDarkly")

Export: DESIGN.md

# LaunchDarkly — Design System

> dark, modern, high, custom — deep decode (measured live)

## Colors

| Role | Value |
|------|-------|
| bg | `#191919` |
| surface | `#262626` |
| border | `#3B3B3B` |
| text | `#FFFFFF` |
| text_muted | `#A7A7A7` |
| primary | `#DDFF46` |
| accent | `#DDFF46` |
| link | `#414042` |
| secondary | `#405BFF` |
| button_bg | `#DDFF46` |
| button_text | `#191919` |

**Using these colors**

- **Action color** `#DDFF46` — the single interactive color; it appears only on things you click or must notice (buttons, key highlights), never on large fills or backgrounds.
- `primary`, `accent`, `button_bg` are all `#DDFF46` — one role, not several (your action color).
- **accent** `#DDFF46` — 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** `#414042` — fails contrast on the background (~1.7:1) — this is a dark UI color, NOT a readable link; use the text or action color for links (verify against the reference).
- **secondary** `#405BFF` — optional secondary accent — LOW decode confidence; use rarely (a status color or a single decorative moment) or omit it entirely. Prefer one accent unless the reference clearly shows two.
- **Page coverage** (full-page screenshot pixels): `#191919` 53.5% · `#070707` 19.9% · `#FDFEF9` 16.6% · `#858292` 10%

## Typography

- Heading: **Arial**
- Body: **Arial**
- Mono: **monoFont** _(measured)_

| Role | Size / weight · line-height · tracking |
|------|------------------------------------------|
| hero | 80px / 700 · lh 80px · tracking -2px |
| h2 | 64px / 700 · lh 64px · tracking -3.2px |
| h3 | 60px / 600 · lh 60px · tracking -1.2px |
| body | 16px / 400 · lh 24px |
| small | 15px / 400 · lh 24px |

- Weight ladder: 400 · 500 · 600 · 700 — use these exact measured weights, not the 400/600 defaults.

> **Fonts —** Arial — system font, no web load needed.

## Spacing
- base unit: 4px (inferred from the measured scale)
- measured scale: 5px, 6px, 8px, 10px, 12px, 16px, 20px, 22px, 24px, 31px — snap all gaps/padding to these
- section rhythm: 120px top/bottom padding per section (measured)

## Radius
- base: 16px
- button: 12px
- card: 16px
- pill: 9999px
- sharp: 2px

## Buttons

| Button | Fill / text | Border | Radius | Padding | Font | Shadow |
|--------|-------------|--------|--------|---------|------|--------|
| primary | `#DDFF46` / `#191919` | 1px solid rgb(25, 25, 25) | 12px | 10px 12px 10px 16px | 500 18px / -0.18px | none |
| secondary | `rgba(0, 0, 0, 0)` / `#FFFFFF` | 1px solid rgba(0, 0, 0, 0) | 8px | 8px 12px 8px 12px | 400 16px | none |

**States (measured, not guessed)**

- primary hover: border `1px solid rgb(255, 255, 255)` · color `#FFFFFF`
- primary focus: outline `1px auto rgb(16, 16, 16)`
- secondary hover: border `1px solid rgba(255, 255, 255, 0.1)` · background `#2C2C2C`
- transition: `background-color 0.3s ease`

## Motion
- durations: 300ms (dominant) · 200ms · 160ms
- easings: `ease` (dominant) · `ease-in`
- animated properties: transform, border-color, background-color, color

Micro-interactions use the dominant duration + easing; nothing on the page animates slower than the longest duration above — don't invent springier motion.

## Their own tokens (verbatim from :root)

| Token | Value |
|-------|-------|
| `--border` | `#d8e5ee` |
| `--green-900` | `#007844` |
| `--cyan-800` | `#288b9f` |
| `--blue-400` | `#7084ff` |
| `--pink-600` | `#d9305b` |
| `--refresh-grey-800` | `#212121` |
| `--purple-200` | `#f1e5fa` |
| `--refresh-lime-100` | `#aaec3a` |
| `--yellow-900` | `#818c1f` |
| `--black-00` | `#2c2c2c` |
| `--pink` | `#ff35a2` |
| `--refresh-grey-500` | `#58595b` |

_…and 108 more measured on the page._

Prefer these names when extending their system — it's the brand's actual vocabulary.

## Layout (measured)
- container max 1416px · common grid: 2-col
- nav: 24px

| Section (y) | Height | Cols | Gap | Pad y | Split |
|---|---|---|---|---|---|
| 4 | 1060 | — | — | 0/0 | — |
| 1228 | 2721 | 2 | 56 | 0/0 | 40/60 |
| 3949 | 830 | — | — | 120/0 | — |
| 4795 | 872 | 2 | 40 | 0/0 | — |

## Motion choreography (measured)
Load order: `div.primitives-module__Pbeuw` @0ms → `div.styles-module__5F-SCq__w`×16 @299ms → `button.styles-module__0nMkBW__p` @300ms → `div.Cost-module__gRBZNa__rev` @782ms → `div.Toxicity-module__IGtOPW_` @965ms → `div.primitives-module__Pbeuw`×4 @1121ms
- `div.styles-module__5F-SCq__w` ×16 — opacity 0→1 · transform translate3d(0px, 120px, 0px)→translateZ(0px) — 700ms cubic-bezier(0.22, 0.61, 0.36, 1)
- `div.primitives-module__Pbeuw` — transform translateX(0px)→translateX(-50%) — 22000ms · loops
- stagger: `div` ×16 — 80ms apart
- scroll reveal: 2 elements rest at a pre-reveal state, animate in over 22000ms (2 revealed during the drive).

Rebuild the timeline, not just the durations — order, delays and staggers above are the choreography.

## Components (measured)
- input: h 56px · r 0px · bg rgba(0, 0, 0, 0) · placeholder #939598
- link: #405BFF · no underline

## Responsive (measured)
- breakpoints: 500px · 659px · 768px · 1024px · 1099px · 1260px
- mobile (390px): hero 34px · body 16px · nav: inline

## 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.
Hover/focus states, shadows and motion timings above are measured from the live page — match them exactly, don't re-guess them.

---

> **Decoded with Mozaika** — measured live, not guessed. Full decoded design system + one-command install: mozaika.design/decode/launchdarkly.com

← All decoded design systems

An automated reading of LaunchDarkly's publicly-visible CSS (colors, fonts, spacing, motion) — not affiliated with launchdarkly.com. No screenshots stored. Removal requests: hello@mozaika.design.