# Flow design system

> Flow design system measured from flow.google.com: Google Sans font, #BA8BFC primary on #000000, 13 color hex codes, type scale, spacing and a free DESIGN.md.

Canonical page: https://sitepeel.dev/design-md/flow.google.com/

Flow’s website (flow.google.com) uses the Google Sans font and #BA8BFC as its main color on a black background. Measured by Sitepeel on November 7, 2026.

## What font does Flow use?

Flow uses Google Sans (weights 400, 500 and 700) and Google Sans Text (weights 400 and 500) on flow.google.com. Page titles are 240px at weight 500 and body text is 16px. Measured on November 7, 2026.

- Google Sans (weights 400, 500, 700)
- Google Sans Text (weights 400, 500)

## Flow colors: palette and hex codes

Flow’s main colors are #000000 (near black) for the background, #FFFFFF (white) for text and #BA8BFC (light violet) as the main accent, with #9E9EFF (light indigo) as another accent. Measured on November 7, 2026.

- #000000: near black
- #FFFFFF: white
- #E3E3E3: mist
- #BFBFBF: silver
- #B8B8B8: silver
- #131314: charcoal
- #BA8BFC: light violet
- #9E9EFF: light indigo

## What is Flow built with?

Flow’s website (flow.google.com) is built with Angular, Angular Material and Google Fonts. Measured on November 7, 2026.

- JavaScript framework: Angular 0.0.0-PLACEHOLDER
- UI & CSS: Angular Material
- Fonts & icons: Google Fonts
- Analytics: Google Analytics, Google Tag Manager

## Questions and answers

### What font does Flow use?

Flow’s website uses Google Sans (weights 400, 500 and 700) and Google Sans Text (weights 400 and 500). Page titles are 240px at weight 500 and body text is 16px. Measured on November 7, 2026.

### What are the Flow colors and hex codes?

On flow.google.com: #000000 (near black) for the background, #FFFFFF (white) for text and #BA8BFC (light violet) as the main accent, with #9E9EFF (light indigo) as another accent. The color palette above lists all 13 colors with their hex codes and where each one is used.

### What is the Flow design system?

The design system on this page is flow.google.com’s, as measured on November 7, 2026: Google Sans type, #BA8BFC as the main color, 16px corners and a 8px spacing grid, written down as a DESIGN.md. It is not Flow’s own documentation.

### What is Flow built with?

Flow’s website (flow.google.com) is built with Angular, Angular Material and Google Fonts. The full tech stack Sitepeel found: Angular, Angular Material, Google Fonts, Google Analytics and Google Tag Manager. Measured on November 7, 2026.

### What is the Flow DESIGN.md?

A plain-text file with Flow’s measured colors, type, spacing, corners and components as tokens, plus short rules, in the DESIGN.md format Google published with Stitch. Your AI coding agent reads it and builds in this style. More about DESIGN.md.

### How do I use it with Claude Code or Cursor?

Download the file and put it in your project’s root folder, then ask your agent to follow DESIGN.md. Step-by-step guides: Claude Code, Cursor, Codex, GitHub Copilot.

### Is this Flow’s official design system?

No. Sitepeel measured it from flow.google.com’s public page on November 7, 2026. It is an independent analysis, not made or approved by Flow.

### Can I use Flow’s style in my own product?

Use it to learn, prototype and compare. For a real product, make the style your own, and never copy Flow’s logo, name, pictures or text.

### How accurate are the values?

Each value was measured on the rendered page after it fully loaded, on desktop and mobile: colors where they appear, type with tracking, spacing, corners, shadows and hover states. Sites change, so check the date at the top.

## Files

- [DESIGN.md](https://sitepeel.dev/design-md/flow.google.com/DESIGN.md): the plain file to put in your project.
- [All brand DESIGN.md files](https://sitepeel.dev/design-md/examples/index.md)

Independent analysis by Sitepeel (sitepeel.dev), not affiliated with Flow.

## The DESIGN.md file

```markdown
---
version: alpha
name: Flow
description: "Dark interface measured from flow.google.com: Google Sans type with Google Sans Text, light violet accents, tonal surfaces and 16px corners."
colors:
  background: "#000000"
  surface: "#000000"
  on-surface: "#FFFFFF"
  on-background: "#FFFFFF"
  on-surface-variant: "#E3E3E3"
  on-surface-muted: "#BFBFBF"
  on-surface-subtle: "#B8B8B8"
  surface-container-low: "#131314"
  overlay: "#00000059"
  overlay-strong: "#FFFFFF0D"
  outline: "#FFFFFF33"
  outline-variant: "#FFFFFF26"
  primary: "#BA8BFC"
  on-primary: "#000000"
  secondary: "#9E9EFF"
typography:
  headline-display:
    fontFamily: Google Sans
    fontSize: 240px
    fontWeight: 500
    lineHeight: 0.85
  headline-lg:
    fontFamily: Google Sans Text
    fontSize: 80px
    fontWeight: 500
    lineHeight: 1
    letterSpacing: -0.042em
  headline-md:
    fontFamily: Google Sans
    fontSize: 56px
    fontWeight: 400
    lineHeight: 0.9
    letterSpacing: -0.05em
  headline-sm:
    fontFamily: Google Sans
    fontSize: 45px
    fontWeight: 400
    lineHeight: 1.16
    letterSpacing: -0.011em
  title-lg:
    fontFamily: Google Sans
    fontSize: 32px
    fontWeight: 700
    lineHeight: 0.75
  body-md:
    fontFamily: Google Sans
    fontSize: 16px
    fontWeight: 400
    lineHeight: 1.5
  body-lg:
    fontFamily: Google Sans
    fontSize: 20px
    fontWeight: 400
    lineHeight: 1.5
    letterSpacing: -0.005em
  body-sm:
    fontFamily: Google Sans Text
    fontSize: 14px
    fontWeight: 400
    lineHeight: 1.14
  caption:
    fontFamily: Google Sans
    fontSize: 12px
    fontWeight: 400
    lineHeight: 2
  headline-lg-mobile:
    fontFamily: Google Sans Text
    fontSize: 16px
    fontWeight: 500
    lineHeight: 1
    letterSpacing: -0.04em
rounded:
  sm: 16px
  md: 32px
  full: 9999px
spacing:
  base: 8px
  xs: 2px
  sm: 8px
  md: 16px
  lg: 24px
  xl: 48px
  gutter: 8px
  section: 128px
  container: 912px
components:
  button-primary:
    backgroundColor: "{colors.on-surface}"
    textColor: "#121317"
    rounded: "{rounded.md}"
    padding: 20px 36px
    height: 60px
  button-primary-hover:
    backgroundColor: "{colors.on-surface-subtle}"
  button-outline:
    backgroundColor: "{colors.background}"
    textColor: "{colors.on-surface}"
    rounded: "{rounded.md}"
    padding: 0px
    height: 48px
  button-outline-hover:
    backgroundColor: "#C4C4C459"
  button-ghost:
    textColor: "{colors.on-surface-variant}"
    padding: 2px
  card:
    textColor: "{colors.on-surface}"
    typography: "{typography.body-md}"
    rounded: 12px
    padding: 0px
  link:
    textColor: "{colors.on-surface}"
---

# Flow Design System

## Overview

Flow describes itself as: “Try Google Flow, the ultimate AI for creatives. Transform ideas into reality using Google’s advanced generative models for cinematic video, images, & tools.” The interface is dark, built on **Near Black (#000000)** with **White (#FFFFFF)** text, and **Light Violet (#BA8BFC)** as the main accent.

Type is set in **Google Sans** and **Google Sans Text**. Headlines run large; body text is 16px. Depth comes from hairline borders and inset highlights rather than drop shadows. Corners are mostly 16px.

Measured from [flow.google.com](https://flow.google.com/about) on November 7, 2026 at 1440×900 and 390×844 from 361 rendered elements. Values are computed styles from the live page, not the original source files.

## Colors

The palette has 13 roles.

- **Near Black (#000000):** Page background, seen 1 time. Token `background`.
- **White (#FFFFFF):** Primary text and headings, seen 115 times. Token `on-surface`, CSS `--color-white`.
- **Mist (#E3E3E3):** Secondary text, seen 3 times. Token `on-surface-variant`.
- **Silver (#BFBFBF):** Muted text and metadata, seen 19 times. Token `on-surface-muted`.
- **Silver (#B8B8B8):** Subtle text and placeholders, seen 2 times. Token `on-surface-subtle`.
- **Charcoal (#131314):** Raised areas one step from the page, seen 1 time. Token `surface-container-low`.
- **Near Black 35% (#00000059):** Translucent fill for cards and controls, seen 29 times. Token `overlay`.
- **White 5% (#FFFFFF0D):** Stronger translucent fill, seen 17 times. Token `overlay-strong`.
- **White 20% (#FFFFFF33):** Borders and dividers, seen 46 times. Token `outline`.
- **White 15% (#FFFFFF26):** Secondary dividers, seen 21 times. Token `outline-variant`.
- **Light Violet (#BA8BFC):** Brand accent (CSS variable). Token `primary`.
- **Near Black (#000000):** Text and icons on primary. Token `on-primary`.
- **Light Indigo (#9E9EFF):** Accent, seen 2 times. Token `secondary`.

## Typography

**Google Sans** and **Google Sans Text** share the interface. Fallback stack: `Google Sans, Google Sans Text, Roboto, sans-serif`. Other loaded fonts: Google Symbols.

- **headline-display:** Google Sans 240px at weight 500, line height 0.85. Page title (h1).
- **headline-lg:** Google Sans Text 80px at weight 500, line height 1, tracking -0.042em (16px on mobile). Section headings (h2).
- **headline-md:** Google Sans 56px at weight 400, line height 0.9, tracking -0.05em. Sub-section headings.
- **headline-sm:** Google Sans 45px at weight 400, line height 1.16, tracking -0.011em. Card and feature titles.
- **title-lg:** Google Sans 32px at weight 700, line height 0.75. Small titles.
- **body-md:** Google Sans 16px at weight 400, line height 1.5. Body text.
- **body-lg:** Google Sans 20px at weight 400, line height 1.5, tracking -0.005em. Lead paragraphs.
- **body-sm:** Google Sans Text 14px at weight 400, line height 1.14. Secondary and small text.
- **caption:** Google Sans 12px at weight 400, line height 2. Captions and fine print.

## Layout

Spacing follows a 8px grid: 90% of measured gaps and paddings are multiples of 8px.

- **Scale:** xs 2px, sm 8px, md 16px, lg 24px, xl 48px.
- **Sections:** 128px vertical padding between major sections.
- **Gaps:** 8px is the most common gap in flex and grid layouts.
- **Container:** content is capped at 912px.
- **Breakpoints:** 319px, 350px, 480px, 600px, 640px, 768px, 900px, 1024px, 1140px, 1600px, 1650px, 1920px.

## Elevation & Depth

Depth comes mostly from hairline rings and inset highlights on tonal surfaces (#131314):

- `rgba(230, 234, 240, 0.12) 0px 0px 0px 1.25px`
- `rgba(230, 234, 240, 0.12) 0px 0px 0px 0.8px`

A few raised panels add a soft drop shadow: `rgba(0, 0, 0, 0.5) 0px 16px 32px -8px`.

## Shapes

Most elements use 16px corners. Measured radii, most used first:

- **sm (16px):** 200 elements.
- **md (32px):** 184 elements.
- **full (9999px):** 52 elements.

## Components

Measured from the rendered page. Token values reference the tokens above.

- **button-primary (“Create with Google Flow”):** #FFFFFF fill, #121317 text, 13.3333px/400, 32px radius, padding 20px 36px, border 1px solid #FFFFFF33.
- **button-primary-hover:** background #FFFFFFB8, text #121317 on hover.
- **button-outline (“Pause video”):** #00000059 fill, #FFFFFF text, 13.3333px/400, 32px radius, padding 0px, border 1px solid #FFFFFF33, shadow `rgba(230, 234, 240, 0.12) 0px 0px 0px 1.25px`.
- **button-outline-hover:** background #C4C4C459, text #FFFFFF on hover.
- **button-ghost (“more_vert”):** transparent fill, #E3E3E3 text, 13.3333px/400, 50% radius, padding 2px.
- **card:** transparent fill, #FFFFFF text, 16px/400, 12px radius, padding 0px, border 1px solid #FFFFFF26.
- **link:** transparent fill, #FFFFFF text, padding 0px.

## Do's and Don'ts

- Do use #000000 for the page and lift surfaces in small steps: #131314.
- Do keep text in 4 levels: #FFFFFF, #E3E3E3, #BFBFBF, #B8B8B8.
- Do use #BA8BFC as the brand accent: header, logo and key highlights.
- Do keep spacing on the 8px grid.
- Do use 16px corners on most elements; larger surfaces also use 32px.
- Don't use heavy drop shadows; keep depth to hairline rings and tonal surfaces.
- Don't introduce new font families beyond Google Sans and Google Sans Text.
- Don't use #BA8BFC for large backgrounds or body text.
- Don't make interface transitions slower than 0.6s.

## Motion

Interface transitions are quick: 0.3s, 0.2s, 0.5s, 0.15s. Longer ambient animations run 2s.

- **Easing:** `ease-in-out`, `ease`, `ease-out`.
- **Reduced motion:** the page responds to `prefers-reduced-motion`.

Generated by [Sitepeel](https://sitepeel.dev/design-md/flow.google.com/), the free DESIGN.md generator (engine 2026.10.29+b828a475ee10).

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