---
version: alpha
name: v0 by Vercel
description: Light design system extracted from v0.app (DOM-true values, Emblematic extractor 0.2.0, 2026-11-12).
colors:
  v0-background-200: "#FAFAFA"
  foreground: "#171717"
  muted-foreground: "#4D4D4D"
  ds-gray-200: "#EBEBEB"
  v0-black: "#000000"
  ds-gray-800: "#7D7D7D"
  v0-gray-600: "#A8A8A8"
  v0-alpha-400: "#00000014"
  ds-gray-100: "#F2F2F2"
typography:
  display-lg:
    fontFamily: Geist
    fontSize: 32px
    fontWeight: 600
    lineHeight: 1.25
    letterSpacing: -0.04em
  headline-md:
    fontFamily: Geist
    fontSize: 14px
    fontWeight: 500
    lineHeight: 1.429
  title-md:
    fontFamily: Geist
    fontSize: 20px
    fontWeight: 600
    lineHeight: 1.3
    letterSpacing: -0.02em
  body-md:
    fontFamily: system-ui
    fontSize: 14px
    fontWeight: 500
    lineHeight: 1
  mono-md:
    fontFamily: Geist Mono
    fontSize: 10px
    fontWeight: 400
    lineHeight: 1.5
rounded:
  xs: 4px
  sm: 8px
  md: 12px
  lg: 16px
  full: 9999px
spacing:
  xxs: 2px
  xs: 4px
  sm: 6px
  md: 8px
  lg: 12px
  xl: 16px
  2xl: 24px
  3xl: 32px
  4xl: 48px
  5xl: 64px
  container: 1264px
components:
  button-primary:
    backgroundColor: "{colors.foreground}"
    textColor: "#FFFFFF"
    rounded: 6px
    padding: 0px
    height: 32px
  button-secondary:
    textColor: "{colors.foreground}"
    rounded: "{rounded.full}"
    padding: 0px
    height: 32px
  card:
    backgroundColor: "{colors.v0-background-200}"
    rounded: "{rounded.sm}"
    padding: 0px
---

# v0 by Vercel

> Extracted from [https://v0.app/](https://v0.app/) 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.

> **Partial render.** 34% of image area in the first 3 viewports never decoded. Colors and layout below describe what rendered for our crawler and may not match what visitors see; low-confidence values are marked or left out.

## Overview

v0 by Vercel uses a light canvas (n/a) with a palette. Type is set in **system-ui**, **Geist** (display), **Geist Mono** (mono), with 14px body text. Layout: 1264px container, top-sticky navigation, 2 sections. Built with next.js, tailwind, radix-ui, shadcn/ui, 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 |
|---|---|---|---|---|---|
| `v0-background-200` | `#FAFAFA` | 0.985 0 0 | bg *(unverified)* | 73.2% | `--v0-background-200` |
| `foreground` | `#171717` | 0.205 0 0 | text *(unverified)* | 12.8% | `--color-foreground` |
| `muted-foreground` | `#4D4D4D` | 0.42 0 0 | muted *(unverified)* | 9.3% | `--color-muted-foreground` |
| `ds-gray-200` | `#EBEBEB` | 0.94 0 0 | border *(unverified)* | 2.4% | `--ds-gray-200` |
| `v0-black` | `#000000` | 0 0 0 | other | 0.84% | `--v0-black` |
| `ds-gray-800` | `#7D7D7D` | 0.59 0 0 | other | 0.74% | `--ds-gray-800` |
| `v0-gray-600` | `#A8A8A8` | 0.732 0 0 | other | 0.27% | `--v0-gray-600` |
| `v0-alpha-400` | `#00000014` (on bg `#E6E6E6`) | 0 0 0 | other | 0.25% | `--v0-alpha-400` |
| `ds-gray-100` | `#F2F2F2` | 0.961 0 0 | other | 0.06% | `--ds-gray-100` |

**Accent not verified.** The best candidate is `#171717` (partial render: 34% of image area in the first 3 viewports never decoded; monochrome page; fill of the primary button, confidence 0.48). Treat it as a guess until reviewed.

Contrast: text on background 17.18:1, muted text 8.1:1.

Gradients in use: `linear-gradient(to right, oklab(1 0 0 / 0.8) 0%, rgba(0, 0, 0, 0) 50%, oklab(1 0 0 / 0.8) 100%)`; `linear-gradient(oklab(1 0 0 / 0.8) 0%, rgba(0, 0, 0, 0) 50%, oklab(1 0 0 / 0.8) 100%)`.

The site responds to `prefers-color-scheme: dark`; the `-dark` tokens hold the dark-mode roles.

## Typography

| Family | Role | Weights | Share of text | Source |
|---|---|---|---|---|
| **system-ui** | body | 400, 500 | 53.0% | system (stack `Inter, -apple-system, "system-ui", "Segoe UI", Roboto, Oxyge`, resolved on macos) |
| **Geist** (CSS: `GeistSans`) | display | 400, 500, 600 | 46.3% | webfont |
| **Geist Mono** (CSS: `GeistMono`) | mono | 400 | 0.80% | webfont |

Declared in `@font-face` but not used to paint text on this page: Roboto Mono, KaTeX Main, Lora, KaTeX SansSerif, KaTeX Fraktur, KaTeX Math. Don't treat these as the page's fonts.

Scale (px): 10, 13, 14, 16, 18, 20, 24, 32, 48. Effective ratio ≈ 1.228 (close to a major third). Body 14px at line-height 1; display 32px with tracking -0.04em. Headings are sentence case. On a 390px viewport the body is 14px and display 24px.

## Layout

Spacing has no reliable single base unit; the most used steps are 2, 4, 6, 8, 12, 16, 24, 32, 48, 64px. Content sits in a 1264px container on a 3-column grid. Text density 0.238 (text area / page area).

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

1. **nav** (64px, bg #FAFAFA)
2. **footer** — “Social” (900px, bg #FAFAFA)

## Elevation & Depth

Style: subtle. Most used shadows:

- `rgba(0, 0, 0, 0.04) 0px 2px 1px 0px`
- `rgba(0, 0, 0, 0.25) 0px 25px 50px -12px`

## Shapes

Dominant corner radius is a full pill; radii in use: 4px, 8px, 12px, 16px, pill. Borders: hairline (1px).

## Components

- **button-primary**: backgroundColor `#171717`, textColor `#FFFFFF`, rounded `6px`, padding `0px 12px`, height `32px`, fontFamily `system-ui`, fontSize `14px`, fontWeight `500`, border `1px solid #171717` (e.g. “Sign Up”)
- **button-secondary**: textColor `#171717`, rounded `9999px`, padding `0px 8px`, height `32px`, fontFamily `system-ui`, fontSize `14px`, fontWeight `400`, border `1px solid #00000014` (e.g. “Use your in v0”)
- **card**: rounded `8px`, padding `0px`, backgroundColor `#FAFAFA`, shadow `rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0`

## Do's and Don'ts

- Do set body copy in system-ui at 14px / 1.
- Do use Geist only for display sizes, not for body text.
- Do tighten large headlines (-0.04em at 32px).
- Don't introduce font weights beyond 400, 500, 600.
- Do keep corners at pill 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: **partial**. Vision pass: not run. Fields below confidence 0.7 are hedged or left out above: `color.accent_strategy`, `color.contrast`, `color.palette`, `color.roles.accent`, `color.roles.bg`, `color.roles.border`, `color.roles.muted`, `color.roles.text`, `layout.columns`, `layout.hero`, `layout.section_count`, `sections[].bbox`, `sections[].kind`, `space.base`, `space.section_padding_px`, `type.body_size`, `type.display_size`, `type.families[].roles`, `type.line_height`, `type.scale_px`, `type.styles`, `type.tracking_display`. Full per-field provenance is in `spec.json`.