---
version: alpha
name: PostHog
description: Light design system extracted from posthog.com (DOM-true values, Emblematic extractor 0.2.0, 2026-11-12).
colors:
  background: "#D3DAC6"
  on-surface-variant: "#65675E"
  surface: "#FFFFFF"
  on-surface: "#111111"
  outline: "#BFC1B7"
  color-6: "#FDEECD"
  color-7: "#374151"
  color-8: "#00000059"
  color-9: "#111827"
  color-10: "#232327"
  color-11: "#CBD5B9"
  color-12: "#E5E7E0"
  swiper-pagination-bullet-inactive-color: "#000000"
  color-14: "#F7A50126"
  color-15: "#2F80FA"
  color-16: "#F3F4EE"
  primary: "#EB9D2A"
  on-primary: "#000000"
typography:
  display-lg:
    fontFamily: Round Hog
    fontSize: 36px
    fontWeight: 800
    lineHeight: 1.111
    letterSpacing: -0.025em
  headline-md:
    fontFamily: Round Hog
    fontSize: 30px
    fontWeight: 700
    lineHeight: 1.333
    letterSpacing: -0.025em
  title-md:
    fontFamily: Round Hog
    fontSize: 18px
    fontWeight: 600
    lineHeight: 1.556
    letterSpacing: -0.025em
  body-md:
    fontFamily: Round Hog
    fontSize: 18px
    fontWeight: 500
    lineHeight: 1.5
  body-sm:
    fontFamily: Round Hog
    fontSize: 15px
    fontWeight: 500
    lineHeight: 1.5
  label-md:
    fontFamily: Round Hog
    fontSize: 14px
    fontWeight: 600
    lineHeight: 1.429
  mono-md:
    fontFamily: Menlo
    fontSize: 15px
    fontWeight: 500
    lineHeight: 1.5
rounded:
  xs: 1px
  sm: 3px
  md: 4px
  lg: 5px
  xl: 5.5px
  2xl: 6px
  3xl: 8px
  4xl: 20px
  full: 9999px
spacing:
  xxs: 2px
  xs: 4px
  sm: 4.5px
  md: 5px
  lg: 6px
  xl: 8px
  2xl: 10px
  3xl: 12px
  4xl: 16px
  5xl: 20px
  6xl: 24px
  7xl: 32px
  container: 979px
components:
  button-primary:
    backgroundColor: "#EB9D2A"
    textColor: "{colors.swiper-pagination-bullet-inactive-color}"
    rounded: "{rounded.2xl}"
    padding: 0px
    height: 35.1px
    typography: "{typography.label-md}"
  button-secondary:
    backgroundColor: "#B62AD9"
    textColor: "{colors.surface}"
    rounded: "{rounded.2xl}"
    padding: 10px
    height: 40px
    typography: "{typography.label-md}"
  card:
    backgroundColor: "#FDFDF8"
    rounded: "{rounded.2xl}"
    padding: 0px
---

# PostHog

> Extracted from [https://posthog.com/](https://posthog.com/) 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

PostHog uses a light canvas (#D3DAC6) with a palette. Type is set in **Round Hog** (display + body), **Menlo** (mono), with 18px body text. Layout: 979px container, none-detected navigation, 1 sections. Built with gatsby, radix-ui, posthog, vercel.

## 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` | `#D3DAC6` | 0.878 0.028 122.7 | bg | 21.8% | — |
| `on-surface-variant` | `#65675E` | 0.509 0.014 117.1 | muted | 10.0% | — |
| `surface` | `#FFFFFF` | 1 0 0 | surface | 15.0% | `--tw-ring-offset-color` |
| `on-surface` | `#111111` | 0.178 0 0 | text | 7.7% | — |
| `outline` | `#BFC1B7` | 0.806 0.014 115.9 | border | 1.7% | — |
| `color-6` | `#FDEECD` | 0.953 0.046 86.5 | other | 8.4% | — |
| `color-7` | `#374151` | 0.373 0.031 259.7 | other | 6.2% | — |
| `color-8` | `#00000059` (on bg `#898E81`) | 0 0 0 | other | 4.3% | — |
| `color-9` | `#111827` | 0.21 0.032 264.7 | other | 4.2% | — |
| `color-10` | `#232327` | 0.258 0.007 285.9 | other | 4.0% | — |
| `color-11` | `#CBD5B9` | 0.858 0.039 123.2 | other | 2.8% | — |
| `color-12` | `#E5E7E0` | 0.924 0.01 119.6 | other | 1.9% | — |
| `swiper-pagination-bullet-inactive-color` | `#000000` | 0 0 0 | other | 1.8% | `--swiper-pagination-bullet-inactive-color` |
| `color-14` | `#F7A50126` (on bg `#D8D2A8`) | 0.783 0.166 73.5 | other | 1.1% | — |
| `color-15` | `#2F80FA` | 0.618 0.198 259 | other | 1.1% | — |
| `color-16` | `#F3F4EE` | 0.966 0.008 112.9 | other | 1.3% | — |

Sparse chromatic highlights (not accents): `#F54E00` (`--swiper-pagination-color`), `#B17816`, `#2F80FA`, `#EB9D2ACC`.

Contrast: text on background 13.14:1, muted text 4:1, accent 1.56:1.

Gradients in use: `linear-gradient(rgb(253, 238, 205), rgb(255, 254, 244))`; `linear-gradient(rgb(58, 58, 60), rgb(28, 28, 30))`.

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

## Typography

| Family | Role | Weights | Share of text | Source |
|---|---|---|---|---|
| **Round Hog** (CSS: `RoundHog`) | display, body | 500, 600, 700, 800 | 54.2% | webfont |
| **Menlo** (CSS: `ui-monospace`) | mono | 500, 700 | 43.9% | system (stack `ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Libe`, resolved on macos) |
| **Source Code Pro** | other | 400, 500, 700 | 1.9% | webfont |

Declared in `@font-face` but not used to paint text on this page: Playground Round Hog, Twig DM Sans, Twig Compact Sans, Twig Fraunces, Charter, Computer Modern. Don't treat these as the page's fonts.

Scale (px): 10, 11, 12, 13, 13.5, 14, 15, 15.5, 17, 18, 20.5, 24, 30, 36. Effective ratio ≈ 1.189 (close to a minor third). Body 18px at line-height 1.5; display 36px with tracking -0.025em. Headings are sentence case. On a 390px viewport the body is 17px and display 30px.

## Layout

Spacing has no reliable single base unit; the most used steps are 2, 4, 4.5, 5, 6, 8, 10, 12, 16, 20, 24, 32px. Content sits in a 979px container on a 2-column grid. Text density 0.899 (text area / page area).

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

1. **footer** — “Shameless CTA” (844px, bg #EEEFE9)

## Elevation & Depth

Style: subtle. Most used shadows:

- `rgba(0, 0, 0, 0.05) 0px 1px 2px 0px`
- `rgb(210, 211, 204) 0px 2.30934px 0px 0px`
- `rgba(0, 0, 0, 0.25) 0px 25px 50px -12px`

## Shapes

Dominant corner radius 6px; radii in use: 1px, 3px, 4px, 5px, 5.5px, 6px, 8px, 20px, 22px, pill. Borders: hairline (1px).

## Components

- **button-primary**: backgroundColor `#EB9D2A`, textColor `#000000`, rounded `6px`, padding `0px 0px`, height `35.1px`, fontFamily `Round Hog`, fontSize `13px`, fontWeight `700`, border `1px solid #B17816` (e.g. “Get started - free”)
- **button-secondary**: backgroundColor `#B62AD9`, textColor `#FFFFFF`, rounded `6px`, padding `10px 12px`, height `40px`, fontFamily `Round Hog`, fontSize `14px`, fontWeight `600` (e.g. “Ask PostHog anything”)
- **card**: rounded `6px`, padding `0px`, backgroundColor `#FDFDF8`, border `1px solid #BFC1B7`, shadow `rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0.25) 0px 25px 50px -12px`

## Do's and Don'ts

- Do set body copy in Round Hog at 18px / 1.5.
- Do tighten large headlines (-0.025em at 36px).
- Don't introduce font weights beyond 400, 500, 600, 700, 800.
- Do keep corners at 6px for most controls, and use the larger radii only for cards and media.
- 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.base`, `space.section_padding_px`. Full per-field provenance is in `spec.json`.