---
version: alpha
name: Fly.io
description: Light design system extracted from fly.io (DOM-true values, Emblematic extractor 0.2.0, 2026-11-12).
colors:
  background: "#F1F2F9"
  surface: "#FFFFFF"
  on-surface: "#4A3F6B"
  color-4: "#191034"
  color-5: "#1E1442"
  color-6: "#281950"
  color-7: "#ECE9FF"
  color-8: "#5B4F78"
  color-9: "#BAC4FF"
  color-10: "#B6CFF6"
  color-11: "#C5E8F0"
  color-12: "#8B5CF659"
  color-13: "#B6D7EF"
  color-14: "#12122680"
  color-15: "#22183C80"
  color-16: "#19103480"
  primary: "#F86D60"
  on-primary: "#281950"
typography:
  display-lg:
    fontFamily: Mackinac
    fontSize: 52px
    fontWeight: 500
    lineHeight: 1.15
    letterSpacing: -0.03em
  headline-md:
    fontFamily: Mackinac
    fontSize: 44px
    fontWeight: 500
    lineHeight: 1.08
    letterSpacing: -0.025em
  title-md:
    fontFamily: Fricolage Grotesque
    fontSize: 17px
    fontWeight: 500
    lineHeight: 1.5
  body-md:
    fontFamily: Fricolage Grotesque
    fontSize: 17px
    fontWeight: 325
    lineHeight: 1.5
  body-sm:
    fontFamily: Fricolage Grotesque
    fontSize: 15px
    fontWeight: 325
    lineHeight: 1.5
  label-md:
    fontFamily: Fricolage Grotesque
    fontSize: 14.5px
    fontWeight: 450
    lineHeight: 1.5
  mono-md:
    fontFamily: Fragment Mono
    fontSize: 17px
    fontWeight: 325
    lineHeight: 1.5
rounded:
  sm: 8px
  md: 24px
  full: 9999px
spacing:
  xxs: 4px
  xs: 6px
  sm: 8px
  md: 10px
  lg: 12px
  xl: 14px
  2xl: 16px
  3xl: 20px
  4xl: 24px
  5xl: 32px
  6xl: 40px
  7xl: 64px
  8xl: 96px
  9xl: 120px
  base: 4px
  container: 1200px
components:
  button-primary:
    backgroundColor: "#F86D60"
    textColor: "{colors.color-6}"
    rounded: "{rounded.full}"
    padding: 0px
    height: 48px
    typography: "{typography.label-md}"
  button-secondary:
    textColor: "#202237"
    rounded: "{rounded.full}"
    padding: 0px
    height: 32px
    typography: "{typography.label-md}"
  card:
    backgroundColor: "{colors.surface}"
    rounded: "{rounded.md}"
    padding: 32px
  input:
    backgroundColor: "#22183C"
    rounded: "{rounded.sm}"
    padding: 8px
    height: 39.8px
---

# Fly.io

> Extracted from [https://fly.io/](https://fly.io/) on 2026-11-12 by Emblematic. Every value below was read from the rendered DOM (computed styles, `document.fonts`, and the fonts Chrome actually used to paint text), not estimated from pixels. When the YAML front matter and this prose disagree, the YAML wins. Copy values from this file exactly; don't transcribe them from memory. Don't copy logos, imagery, illustrations or marketing copy.

## Overview

Fly.io uses a light canvas (#F1F2F9) with a palette. Type is set in **Fricolage Grotesque**, **Mackinac** (display), **Fragment Mono** (mono), with 17px body text. Layout: 1200px container, top-static+transparent navigation, 3 sections. Built with tailwind, posthog, google-tag-manager, fly.io.

## Colors

Area-weighted from painted backgrounds, text and borders on the 1440px light capture. Roles are inferred from usage (largest background, most text, interactive fills). Every hex is an exact computed value; a role marked *unverified* is a best guess that has not passed review, so its canonical token (e.g. `primary`) is left out of the front matter.

| Token | Hex | OKLCH | Role | Share of paint | CSS variable |
|---|---|---|---|---|---|
| `background` | `#F1F2F9` | 0.962 0.009 279.7 | bg | 48.2% | — |
| `surface` | `#FFFFFF` | 1 0 0 | surface | 32.2% | `--tw-ring-offset-color` |
| `on-surface` | `#4A3F6B` | 0.399 0.074 294.3 | text | 0.52% | — |
| `color-4` | `#191034` | 0.209 0.068 290.9 | other | 4.2% | — |
| `color-5` | `#1E1442` | 0.235 0.083 288.3 | other | 4.1% | — |
| `color-6` | `#281950` | 0.268 0.096 291.1 | other | 3.0% | — |
| `color-7` | `#ECE9FF` | 0.943 0.03 292.1 | other | 1.3% | — |
| `color-8` | `#5B4F78` | 0.457 0.067 297.1 | other | 0.87% | — |
| `color-9` | `#BAC4FF` | 0.833 0.084 277 | other | 0.77% | — |
| `color-10` | `#B6CFF6` | 0.849 0.061 259.2 | other | 0.77% | — |
| `color-11` | `#C5E8F0` | 0.908 0.038 213.1 | other | 0.77% | — |
| `color-12` | `#8B5CF659` (on bg `#CDBDF8`) | 0.606 0.219 292.7 | other | 0.50% | — |
| `color-13` | `#B6D7EF` | 0.863 0.048 239.7 | other | 0.39% | — |
| `color-14` | `#12122680` (on bg `#828290`) | 0.194 0.04 282 | other | 0.36% | — |
| `color-15` | `#22183C80` (on bg `#8A859B`) | 0.243 0.067 293.6 | other | 0.36% | — |
| `color-16` | `#19103480` (on bg `#858197`) | 0.209 0.068 290.9 | other | 0.36% | — |

Sparse chromatic highlights (not accents): `#7C3AED`.

Contrast: text on background 8.49:1, muted text 2.37:1, accent 2.56:1.

Gradients in use: `linear-gradient(rgb(241, 242, 249), rgb(255, 255, 255), rgb(255, 255, 255))`; `linear-gradient(rgb(186, 196, 255) 45%, rgb(182, 207, 246) 60%, rgb(182, 215, 239) 80%, rgb(197, 232, 240))`.

The site does not change under `prefers-color-scheme: dark`.

## Typography

| Family | Role | Weights | Share of text | Source |
|---|---|---|---|---|
| **Fricolage Grotesque** | body | 325, 450, 500, 575 | 51.9% | webfont |
| **Mackinac** | display | 500 | 47.8% | webfont |
| **Fragment Mono** | mono | 325 | 0.20% | webfont |

Scale (px): 12, 14.5, 15, 15.5, 17, 19, 23, 26, 32, 44, 48, 52. Effective ratio ≈ 1.173 (close to a minor third). Body 17px at line-height 1.5; display 52px with tracking -0.03em. Headings are sentence case. On a 390px viewport the body is 17px and display 33.54px.

## Layout

Spacing follows a 4px base unit; the most used steps are 4, 6, 8, 10, 12, 14, 16, 20, 24, 32, 40, 64, 96, 120px. Content sits in a 1200px container on a 3-column grid. Text density 0.088 (text area / page area).

Section order (desktop). Kinds below the review threshold are shown as *section*:

1. **hero** (5802px, bg #FFFFFF)
2. **nav** (96px, bg #FFFFFF)
3. **footer** (551px, bg #191034)

## Elevation & Depth

Style: elevated. Most used shadows:

- `rgba(40, 25, 80, 0.04) 0px 1px 2px 0px, rgba(40, 25, 80, 0.14) 0px 16px 40px -20px`
- `rgba(32, 34, 55, 0.05) 0px 10px 15px -3px, rgba(32, 34, 55, 0.05) 0px 4px 6px -4px`
- `rgba(0, 0, 0, 0.1) 0px 1px 3px 0px, rgba(0, 0, 0, 0.1) 0px 1px 2px -1px`

## Shapes

Dominant corner radius 0px; radii in use: 8px, 24px, pill. Borders: hairline (1px).

## Components

- **button-primary**: backgroundColor `#F86D60`, textColor `#281950`, rounded `9999px`, padding `0px 20px`, height `48px`, fontFamily `Fricolage Grotesque`, fontSize `15.5px`, fontWeight `450`, shadow `rgb(252, 185, 178) 0px 0px 0px 1.5px inset, rgba(0, 0, 0, 0) 0px 0px 0px 0px` (e.g. “Start free”)
- **button-secondary**: textColor `#202237`, rounded `9999px`, padding `0px 10px`, height `32px`, fontFamily `Fricolage Grotesque`, fontSize `14.5px`, fontWeight `450`, border `1px solid #FFFFFFE6`, shadow `rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0.1) 0px 1px 3px 0px, rgba(0, 0, 0, 0.` (e.g. “Log In”)
- **card**: rounded `24px`, padding `32px`, backgroundColor `#FFFFFF`, shadow `rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(40, 25, 80, 0.04) 0px 1px 2px 0px, rgba(40, 25,`
- **input**: rounded `8px`, height `39.8px`, padding `8px 12px`, backgroundColor `#22183C`, border `1px solid #42385F`

## Do's and Don'ts

- Do set body copy in Fricolage Grotesque at 17px / 1.5.
- Do use Mackinac only for display sizes, not for body text.
- Do tighten large headlines (-0.03em at 52px).
- Don't introduce font weights beyond 325, 450, 500, 575.
- Do keep corners at 0px for most controls, and use the larger radii only for cards and media.
- Do snap spacing to multiples of 4px.
- Don't copy this site's logos, illustrations, photography or copy; use the system, not the brand assets.

## Provenance

Spec v2, extractor 0.2.0. Render quality: **ok**. Vision pass: not run. Fields below confidence 0.7 are hedged or left out above: `color.accent_strategy`, `layout.columns`, `layout.hero`, `layout.section_count`, `space.section_padding_px`. Full per-field provenance is in `spec.json`.