GrammarlyBrand
DESIGN.md · measured October 21, 2026
Docker design system
Light interface measured from docker.com: Repro type with Inter, vivid blue accents, tonal surfaces and 18px corners.
- Background
- #F9FAFB
- Primary
- #2560FF
- Type
- Repro
- Corners
- 18px
From docker.com ↗ · 289 elements at 1440×900 and 390×844 · Independent analysis, not affiliated with Docker
Docker colors
18 roles measured on the page, grouped by where each color is used.
Surfaces
#F9FAFBbackground · --backgroundColorPage background · 6×#FFFFFFsurface-container-low · --eyebrowColorRaised areas one step from the page · 7×#F0F0F0surface-containerCards and panels · 1×#D6DCE6surface-container-highHover and pressed fills · 1×#FFFFFF1FoverlayTranslucent fill for cards and controls · 2×Text
#2C333Fon-surface · --labelColorPrimary text and headings · 58×#000000on-surface-strong · --menuLinkLabelColorHeadings and emphasis · 11×#475569on-surface-variantSecondary text · 4×#94A3B8on-surface-mutedMuted text and metadata · 7×#FFFFFFon-primaryText and icons on primaryAccents
#2560FFprimary · --menuLinkButtonColorPrimary buttons and calls to action · 12×#00084DsecondaryBrand color in the header · 43×#1D63EDtertiarySecondary buttons · 43×Borders
#E7EAEFoutline · --codeBoxBackgroundColorBorders and dividers · 4×#0F172A12outline-variantSecondary dividers · 3×Status
#34D399successSuccess and positive states · 8×#EF4444errorErrors and destructive states · 2×#FFBD2EwarningWarnings and highlights · 1×Gradients
Docker fonts
4 families.
mobile 36px
Contrast
Text on #F9FAFB
12.2:120.1:17.3:12.5:1Spacing
No strict grid · 80% are multiples of 4px
xs3.5pxsm8pxmd12pxlg20pxxl40pxgutter8pxBreakpoints: 400px 425px 426px 500px 550px 767px 768px 769px 896px 900px
Shapes
Corner radii, most used first.
Depth
Components
Rebuilt from the measured CSS.
Motion
Interface transitions
0.25s0.3s0.1seasecubic-bezier(0.4, 0, 0.2, 1)
Do’s and don’ts
Rules written from the measurements, so a coding agent stays on style.
- Use #F9FAFB for the page and lift surfaces in small steps: #FFFFFF, #F0F0F0, #D6DCE6.
- Keep text in 4 levels: #2C333F, #000000, #475569, #94A3B8.
- Reserve #2560FF for primary actions and key highlights.
- Set headlines in Repro with tight tracking (-0.03em).
- Reuse the measured spacing steps (8px, 12px, 20px).
- Use 18px corners on most elements; larger surfaces also use 2px, 4px and 8px.
- Use #94A3B8 for body text; it reaches 2.5:1 on #F9FAFB. Keep it for large text or metadata.
- Introduce new font families beyond Repro, Inter, ABC Repro and ui-monospace.
- Use #2560FF for large backgrounds or body text.
- Make interface transitions slower than 0.3s.
---
version: alpha
name: Docker
description: "Light interface measured from docker.com: Repro type with Inter, vivid blue accents, tonal surfaces and 18px corners."
colors:
background: "#F9FAFB"
surface: "#F9FAFB"
on-surface: "#2C333F"
on-background: "#2C333F"
on-surface-strong: "#000000"
on-surface-variant: "#475569"
on-surface-muted: "#94A3B8"
surface-container-low: "#FFFFFF"
surface-container: "#F0F0F0"
surface-container-high: "#D6DCE6"
overlay: "#FFFFFF1F"
outline: "#E7EAEF"
outline-variant: "#0F172A12"
primary: "#2560FF"
on-primary: "#FFFFFF"
secondary: "#00084D"
tertiary: "#1D63ED"
success: "#34D399"
error: "#EF4444"
warning: "#FFBD2E"
typography:
headline-display:
fontFamily: Repro
fontSize: 64px
fontWeight: 500
lineHeight: 1.05
letterSpacing: -0.03em
headline-lg:
fontFamily: Repro
fontSize: 60px
fontWeight: 500
lineHeight: 1
letterSpacing: -0.025em
headline-md:
fontFamily: Inter
fontSize: 22px
fontWeight: 500
lineHeight: 1.25
letterSpacing: -0.012em
headline-sm:
fontFamily: Inter
fontSize: 20px
fontWeight: 500
lineHeight: 1.5
letterSpacing: -0.013em
body-md:
fontFamily: Inter
fontSize: 16px
fontWeight: 400
lineHeight: 1.5
body-lg:
fontFamily: ABC Repro
fontSize: 19px
fontWeight: 600
lineHeight: 1.3
letterSpacing: -0.012em
body-sm:
fontFamily: Inter
fontSize: 14px
fontWeight: 400
lineHeight: 1
letterSpacing: -0.011em
caption:
fontFamily: Inter
fontSize: 12px
fontWeight: 400
lineHeight: 1.3
letterSpacing: -0.012em
label-lg:
fontFamily: Inter
fontSize: 14px
fontWeight: 500
lineHeight: 1.3
letterSpacing: -0.011em
label-md:
fontFamily: Inter
fontSize: 13px
fontWeight: 600
lineHeight: 1.2
letterSpacing: 0.01em
label-sm:
fontFamily: Inter
fontSize: 12px
fontWeight: 500
lineHeight: 1.3
letterSpacing: -0.012em
code:
fontFamily: ui-monospace
fontSize: 12.5px
fontWeight: 400
lineHeight: 1.5
headline-display-mobile:
fontFamily: Repro
fontSize: 36px
fontWeight: 500
lineHeight: 1.05
letterSpacing: -0.03em
rounded:
sm: 2px
md: 4px
lg: 8px
xl: 18px
full: 9999px
spacing:
xs: 3.5px
sm: 8px
md: 12px
lg: 20px
xl: 40px
gutter: 8px
components:
button-primary:
backgroundColor: "{colors.primary}"
textColor: "{colors.on-primary}"
typography: "{typography.label-sm}"
rounded: "{rounded.md}"
padding: 8px 12px
height: 34px
button-outline:
backgroundColor: "{colors.surface-container-low}"
textColor: "{colors.on-surface-strong}"
typography: "{typography.label-sm}"
rounded: "{rounded.md}"
padding: 8px 12px
height: 34px
button-secondary:
backgroundColor: "{colors.tertiary}"
textColor: "{colors.on-primary}"
typography: "{typography.label-md}"
rounded: "{rounded.sm}"
padding: 12px 10px
height: 42px
card:
backgroundColor: "{colors.surface-container-low}"
textColor: "#0B1220"
typography: "{typography.body-md}"
rounded: "{rounded.xl}"
padding: 28px 28px 0px 28px
link:
textColor: "{colors.on-surface}"
---
# Docker Design System
## Overview
Docker describes itself as: “Run AI agents and containers safely, anywhere. Docker gives builders trusted sandboxes, governance, and a secure supply chain for modern software.” The interface is light, built on **Snow (#F9FAFB)** with **Deep Blue (#2C333F)** text, and **Vivid Blue (#2560FF)** as the main accent.
Type is set in **Repro** and **Inter**, with **ui-monospace** for code. Headlines run large with tight negative tracking; body text is 16px. Depth comes from soft drop shadows. Corners are mostly 18px.
Measured from [docker.com](https://www.docker.com/) on October 21, 2026 at 1440×900 and 390×844 from 289 rendered elements. Values are computed styles from the live page, not the original source files.
## Colors
The palette has 18 roles, plus gradient stops #283045.
- **Snow (#F9FAFB):** Page background, seen 6 times. Token `background`, CSS `--backgroundColor`.
- **Deep Blue (#2C333F):** Primary text and headings, seen 58 times. Token `on-surface`, CSS `--labelColor`.
- **Near Black (#000000):** Headings and emphasis, seen 11 times. Token `on-surface-strong`, CSS `--menuLinkLabelColor`.
- **Dark Blue (#475569):** Secondary text, seen 4 times. Token `on-surface-variant`.
- **Blue (#94A3B8):** Muted text and metadata, seen 7 times. Token `on-surface-muted`.
- **White (#FFFFFF):** Raised areas one step from the page, seen 7 times. Token `surface-container-low`, CSS `--eyebrowColor`.
- **Mist (#F0F0F0):** Cards and panels, seen 1 time. Token `surface-container`.
- **Cool Silver (#D6DCE6):** Hover and pressed fills, seen 1 time. Token `surface-container-high`.
- **White 12% (#FFFFFF1F):** Translucent fill for cards and controls, seen 2 times. Token `overlay`.
- **Cool Mist (#E7EAEF):** Borders and dividers, seen 4 times. Token `outline`, CSS `--codeBoxBackgroundColor`.
- **Deep Blue 7% (#0F172A12):** Secondary dividers, seen 3 times. Token `outline-variant`.
- **Vivid Blue (#2560FF):** Primary buttons and calls to action, seen 12 times. Token `primary`, CSS `--menuLinkButtonColor`.
- **White (#FFFFFF):** Text and icons on primary. Token `on-primary`.
- **Deep Indigo (#00084D):** Brand color in the header, seen 43 times. Token `secondary`.
- **Vivid Blue (#1D63ED):** Secondary buttons, seen 43 times. Token `tertiary`.
- **Teal (#34D399):** Success and positive states, seen 8 times. Token `success`.
- **Vivid Red (#EF4444):** Errors and destructive states, seen 2 times. Token `error`.
- **Vivid Amber (#FFBD2E):** Warnings and highlights, seen 1 time. Token `warning`.
## Typography
**Repro**, **Inter**, **ABC Repro** and **ui-monospace** (monospace) share the interface. Fallback stack: `Repro, Helvetica, Arial, sans-serif`.
- **headline-display:** Repro 64px at weight 500, line height 1.05, tracking -0.03em (36px on mobile). Page title (h1).
- **headline-lg:** Repro 60px at weight 500, line height 1, tracking -0.025em. Section headings (h2).
- **headline-md:** Inter 22px at weight 500, line height 1.25, tracking -0.012em. Sub-section headings.
- **headline-sm:** Inter 20px at weight 500, line height 1.5, tracking -0.013em. Card and feature titles.
- **body-md:** Inter 16px at weight 400, line height 1.5. Body text.
- **body-lg:** ABC Repro 19px at weight 600, line height 1.3, tracking -0.012em. Lead paragraphs.
- **body-sm:** Inter 14px at weight 400, line height 1, tracking -0.011em. Secondary and small text.
- **caption:** Inter 12px at weight 400, line height 1.3, tracking -0.012em. Captions and fine print.
- **label-lg:** Inter 14px at weight 500, line height 1.3, tracking -0.011em. Large buttons and tabs.
- **label-md:** Inter 13px at weight 600, line height 1.2, tracking 0.01em. Buttons, navigation and labels.
- **label-sm:** Inter 12px at weight 500, line height 1.3, tracking -0.012em. Small labels and badges.
- **code:** ui-monospace 12.5px at weight 400, line height 1.5. Code and technical values.
## Layout
Spacing is mostly on a 4px grid (80% of measured values), with some off-grid steps. Match the measured scale rather than rounding everything.
- **Scale:** xs 3.5px, sm 8px, md 12px, lg 20px, xl 40px.
- **Gaps:** 8px is the most common gap in flex and grid layouts.
- **Breakpoints:** 400px, 425px, 426px, 500px, 550px, 767px, 768px, 769px, 896px, 900px.
## Elevation & Depth
Raised elements use soft drop shadows. The most used recipes:
- `rgba(15, 23, 42, 0.03) 0px 1px 2px 0px`
Hairline rings and inset highlights also appear: `rgb(67, 76, 95) 0px 0px 1px 1px inset`.
## Shapes
Most elements use 18px corners. Measured radii, most used first:
- **xl (18px):** 28 elements.
- **sm (2px):** 24 elements.
- **full (9999px):** 12 elements.
- **md (4px):** 8 elements.
- **lg (8px):** 8 elements.
## Components
Measured from the rendered page. Token values reference the tokens above.
- **button-primary (“Buy now”):** #2560FF fill, #FFFFFF text, 12px/500, 4px radius, padding 8px 12px, border 1px solid #003DB5, shadow `rgb(192, 224, 250) 0px 0px 1px 1px inset`.
- **button-outline (“Get started”):** #FFFFFF fill, #000000 text, 12px/500, 4px radius, padding 8px 12px, border 1px solid #A9B4C6, shadow `rgba(0, 0, 0, 0) 0px 0px 1px 1px inset`.
- **button-secondary (“Reject All”):** #1D63ED fill, #FFFFFF text, 13.008px/600, 2px radius, padding 12px 10px, border 1px solid #1D63ED.
- **card:** #FFFFFF fill, #0B1220 text, 16px/400, 18px radius, padding 28px 28px 0px 28px, border 1px solid #E7EAEF, shadow `rgba(15, 23, 42, 0.03) 0px 1px 2px 0px`.
- **link:** transparent fill, #2C333F text, padding 0px.
## Do's and Don'ts
- Do use #F9FAFB for the page and lift surfaces in small steps: #FFFFFF, #F0F0F0, #D6DCE6.
- Do keep text in 4 levels: #2C333F, #000000, #475569, #94A3B8.
- Do reserve #2560FF for primary actions and key highlights.
- Do set headlines in Repro with tight tracking (-0.03em).
- Do reuse the measured spacing steps (8px, 12px, 20px).
- Do use 18px corners on most elements; larger surfaces also use 2px, 4px and 8px.
- Don't use #94A3B8 for body text; it reaches 2.5:1 on #F9FAFB. Keep it for large text or metadata.
- Don't introduce new font families beyond Repro, Inter, ABC Repro and ui-monospace.
- Don't use #2560FF for large backgrounds or body text.
- Don't make interface transitions slower than 0.3s.
## Motion
Interface transitions are quick: 0.25s, 0.3s, 0.1s. Longer ambient animations run 1s.
- **Easing:** `ease`, `cubic-bezier(0.4, 0, 0.2, 1)`.
Generated by [Sitepeel](https://sitepeel.dev/design-md/docker.com/), the free DESIGN.md generator.
What you can build with it
Landing pages, pricing tables, dashboards: your AI coding agent builds them in this style, with these colors, fonts, spacing and buttons instead of its defaults.
Download DESIGN.md, put it in your project’s root folder, then ask your agent for a page.
Build a landing page for my product. Follow for every color, font, spacing value, corner and button.
Need more than one page?
Design MD in the Sitepeel tools for Chrome measures pages behind a login, combines several pages into one file and works on any site you open.
More designs
See all →FAQ
Questions
What can I build with the Docker DESIGN.md?
Any page or component in this style: a landing page, pricing table, dashboard or sign-up form. Your AI coding agent uses the measured colors, Repro type, spacing, corners and buttons instead of its own defaults.
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 Docker’s official design system?
No. Sitepeel measured it from docker.com’s public page on October 21, 2026. It is an independent analysis, not made or approved by Docker.
Can I use Docker’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 Docker’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.




