Browserbase — design system & UI screens

Dev Tools · 1 screen · 11 sections · https://www.browserbase.com/

Light dev-infra landing; a pixelated orange-and-black topographic mountain data-viz hero, 'the web as reliable and programmable as APIs', and a 10,000+ companies logo wall (Microsoft, Clay, Ramp, DeepMind).

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/website/browserbase.

Decoded design system

Browserbase's decoded design system: background #FFFFFF, text #000000, accent #000000, link #C5D3E8, primary #E1E9F2; type scale h1 16px / h2 45px / body 20px; 4px spacing base; 0px base radius. The single interactive/action color is #000000 — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

Role	Value
bg	`#FFFFFF`
surface	`#EFEFEF`
border	`#D8D8D8`
text	`#000000`
text_muted	`#606060`
primary	`#E1E9F2`
accent	`#000000`
link	`#C5D3E8`
secondary	`#FF4500`
button_bg	`#000000`
button_text	`#FFFFFF`

Using these colors

Action color #000000 — the single interactive color; only on things you click or must notice, never large fills.
accent, button_bg are all #000000 — one role, not several (the action color).
accent #000000 — 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.
primary #E1E9F2 — a neutral UI color (chips, tags, icon fills, chrome), not the action color (action = #000000).
link #C5D3E8 — fails contrast on the background (~1.5:1) — this is a dark UI color, NOT a readable link; use the text or action color for links (verify against the reference).
secondary #FF4500 — 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: gtStandardMono
Body: gtStandardMono
Mono: gtStandardMono
h1: 16px
h2: 45px
body: 20px

Spacing

base unit: 4px
scale: 4px, 7px, 8px, 10px, 12px, 14px, 16px, 18px, 24px, 32px

Radii

base: 0px
button: 99px

Motion

Micro-interactions run at 200ms (dominant) with cubic-bezier(0.3, 0, 0.15, 1).

durations: 200ms · 300ms · 100ms
easings: cubic-bezier(0.3, 0, 0.15, 1) · ease-in-out
animated properties: background-color, border-radius, color, transform

Native design tokens

Token	Value
`--color-white`	`#fff`
`--color-blue`	`#5956ff`
`--color-orange`	`#ff5e19`
`--color-black`	`#000`
`--color-grey-25`	`#fcfcfc`
`--color-grey-50`	`#f8f8f8`
`--color-grey-100`	`#f2f2f2`
`--color-grey-200`	`#e5e5e5`
`--color-grey-300`	`#d4d4d4`
`--color-grey-400`	`#a9a9a9`

…and 110 more measured on the page.

Button states (measured)

primary hover: border-radius 0px · background #F0F4F8
primary focus: outline 3px solid rgb(0, 0, 0)

Layout (measured)

container max-width: 1280px
nav: 52px sticky
common grid: 12 columns

Motion choreography (measured)

Scroll reveal: 2 elements rest at translateY(59px).

Responsive (measured)

breakpoints: 400px · 600px · 960px · 1120px · 1280px · 1408px
mobile (390px): nav hamburger

Full design system, per-section tokens & DESIGN.md / Tailwind / CSS exports →

Screens

Browserbase - Give Your Agents Access to the Whole Web