---
version: alpha
name: Browserbase
description: Light design system extracted from www.browserbase.com (DOM-true values, Emblematic extractor 0.2.0, 2026-11-12).
colors:
  background: "#FFFFFF"
  on-surface: "#000000"
  surface: "#C5D3E8"
  on-surface-variant: "#686562"
  brand: "#FF4500"
  cool-gray-200: "#F0F4F8"
  cool-gray-800: "#5A78AF"
  pale-blue: "#C4EDFF"
  bd: "#D3DEED"
  color-10: "#FFC0CB"
  pale-gray: "#E2E9F3"
  pale-yellow: "#FFFDE6"
  pale-red: "#FFEAE3"
  primary: "#000000"
  on-primary: "#FFFFFF"
typography:
  display-lg:
    fontFamily: GT Planar
    fontSize: 103.97px
    fontWeight: 500
    lineHeight: 1.1
  title-md:
    fontFamily: Plain
    fontSize: 16px
    fontWeight: 500
    lineHeight: 1.2
    letterSpacing: 0.015em
  body-md:
    fontFamily: Plain
    fontSize: 16px
    fontWeight: 400
    lineHeight: 1.2
    letterSpacing: 0.01em
  body-sm:
    fontFamily: GT Standard Mono
    fontSize: 14px
    fontWeight: 500
    lineHeight: 1.2
    letterSpacing: 0.06em
rounded:
  md: 12px
  full: 9999px
spacing:
  xxs: 3px
  xs: 4px
  sm: 4.5px
  md: 5px
  lg: 6px
  xl: 8px
  2xl: 10px
  3xl: 14px
  4xl: 16px
  5xl: 18px
  6xl: 20px
  7xl: 24px
  8xl: 32px
  9xl: 40px
  container: 1280px
components:
  button-primary:
    backgroundColor: "{colors.on-surface}"
    textColor: "{colors.background}"
    rounded: "{rounded.full}"
    padding: 14px
    height: 39.4px
---

# Browserbase

> Extracted from [https://www.browserbase.com/](https://www.browserbase.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

Browserbase uses a light canvas (#FFFFFF) with a palette. Type is set in **Plain**, **GT Planar** (display), **GT Standard Mono** (mono), with 16px body text. Layout: 1280px container, top-sticky navigation, 10 sections. Built with next.js, sanity, hubspot, posthog, google-tag-manager, 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` | `#FFFFFF` | 1 0 0 | bg | 66.8% | `--color-bg` |
| `on-surface` | `#000000` | 0 0 0 | text | 8.5% | `--color-text` |
| `surface` | `#C5D3E8` | 0.863 0.033 258.4 | surface | 2.3% | `--color-button-gray-background` |
| `on-surface-variant` | `#686562` | 0.509 0.006 67.7 | muted | 1.6% | `--color-text-soft` |
| `brand` | `#FF4500` | 0.66 0.229 35.4 | other | 11.5% | `--color-brand` |
| `cool-gray-200` | `#F0F4F8` | 0.965 0.007 247.9 | other | 4.7% | `--color-cool-gray-200` |
| `cool-gray-800` | `#5A78AF` | 0.573 0.092 262 | other | 1.8% | `--color-cool-gray-800` |
| `pale-blue` | `#C4EDFF` | 0.923 0.049 226.3 | other | 0.46% | `--color-pale-blue` |
| `bd` | `#D3DEED` | 0.897 0.024 256.1 | other | 0.43% | `--color-bd` |
| `color-10` | `#FFC0CB` | 0.868 0.074 7.1 | other | 0.41% | — |
| `pale-gray` | `#E2E9F3` | 0.932 0.015 257.2 | other | 0.50% | `--color-pale-gray` |
| `pale-yellow` | `#FFFDE6` | 0.99 0.03 102.9 | other | 0.41% | `--color-pale-yellow` |
| `pale-red` | `#FFEAE3` | 0.952 0.025 39.4 | other | 0.30% | `--color-pale-red` |

Sparse chromatic highlights (not accents): `#FF4500` (`--color-brand`), `#5A78AF` (`--color-cool-gray-800`).

Declared brand/accent tokens: `--color-brand` = `#FF4500`, `--color-primary-navy` = `#0000CD`, `--color-primary-gold` = `#CB9915` (declared, not painted on this page), `--color-primary-pink` = `#FFC0CB`.

Contrast: text on background 21:1, muted text 5.79:1, accent 21:1.

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

## Typography

| Family | Role | Weights | Share of text | Source |
|---|---|---|---|---|
| **Plain** (CSS: `plain`) | body | 400, 500 | 47.4% | webfont |
| **GT Planar** (CSS: `gtPlanar`) | display | 400, 500 | 43.2% | webfont |
| **GT Standard Mono** (CSS: `gtStandardMono`) | mono | 400, 500 | 9.4% | webfont |

Declared in `@font-face` but not used to paint text on this page: GT Standard. Don't treat these as the page's fonts.

Scale (px): 14, 16, 20, 36, 45, 104. Effective ratio ≈ 1.597 (close to a golden ratio). Body 16px at line-height 1.2; display 103.97px with tracking 0em. Headings are sentence case. On a 390px viewport the body is 16px and display 27.42px.

## Layout

Spacing has no reliable single base unit; the most used steps are 3, 4, 4.5, 5, 6, 8, 10, 14, 16, 18, 20, 24, 32, 40px. Sections open with about 78px of space before their first line of text. Content sits in a 1280px container on a 12-column grid. Text density 0.079 (text area / page area).

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

1. **nav** (52px, bg #FFFFFF)
2. **section** (52px, bg #FFFFFF)
3. **hero** — “Give your agents access to the whole web.” (711px, bg #FFFFFF)
4. **logos** (272px, bg #FFFFFF)
5. **testimonials** — “See what on the web. agents can do” (988px, bg #FFFFFF)
6. **section** — “API. an it’s like web whole the Use” (523px, bg #FFFFFF)
7. **section** — “Anything in a browser, your agent can too. you can do” (1968px, bg #FFFFFF)
8. **section** — “Zero setup. Real results.” (797px, bg #FFFFFF)
9. **section** — “100% of the web at . production scale” (1545px, bg #FFFFFF)
10. **footer** — “Company” (571px, bg #FF4500)

## Elevation & Depth

Style: subtle. Most used shadows:

- `rgba(0, 0, 0, 0.15) 0px 3.97576px 7.95152px 0px`
- `rgb(197, 211, 232) 0px -1px 0px 0px inset`

## Shapes

Dominant corner radius 0px; radii in use: 12px, pill. Borders: hairline (1px).

## Components

- **button-primary**: backgroundColor `#000000`, textColor `#FFFFFF`, rounded `9999px`, padding `14px 18px`, height `39.4px`, fontFamily `Plain`, fontSize `16px`, fontWeight `500` (e.g. “Get a demo”)

## Do's and Don'ts

- Do set body copy in Plain at 16px / 1.2.
- Do use GT Planar only for display sizes, not for body text.
- Don't introduce font weights beyond 400, 500.
- Do keep corners at 0px for most controls.
- 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`, `sections[].kind`, `space.base`, `space.section_padding_px`. Full per-field provenance is in `spec.json`.