Sitepeel
deepl.com homepage as measured on October 21, 2026

DESIGN.md · measured October 21, 2026

DeepL design system

Light interface measured from deepl.com: robotoLatin type, deep blue accents, tonal surfaces and pill-shaped controls.

Background
#FFFFFF
Primary
#0F2B46
Type
robotoLatin
Corners
Pill
Download DESIGN.md

From deepl.com ↗ · 434 elements at 1440×900 and 390×844 · Independent analysis, not affiliated with DeepL

DeepL colors

15 roles measured on the page, grouped by where each color is used.

Surfaces

White#FFFFFFbackgroundPage background · 15×
Snow#F8F8F8surface-container-lowRaised areas one step from the page · 1×
Pale Teal#DEFDEEsurface-container · --dui-color-green-50-hexCards and panels · 1×
Snow#F5F5F5surface-container-high · --dui-color-background-action-basic-raised-hoverHover and pressed fills · 1×
Pale Cyan#DEF5FFsurface-container-highestHighest raised elements · 11×
White 30%#FFFFFF4DoverlayTranslucent fill for cards and controls · 34×

Text

Charcoal#191919on-surfacePrimary text and headings · 11×
Deep Blue#091A2Bon-surface-variantSecondary text · 11×
Deep Blue#0A1B2Con-surface-mutedMuted text and metadata · 3×
Graphite#292929on-surface-subtleSubtle text and placeholders · 27×
Snow#F5F5F5on-primaryText and icons on primary

Accents

Deep Blue#0F2B46primaryPrimary buttons and calls to action · 29×
Blue#42A2FFsecondaryMost used accent color · 15×
Blue#0070C9tertiary · --dui-color-chart-status-infoMost used accent color · 14×

Status

Deep Teal#004730successSuccess and positive states · 1×

DeepL fonts

One family carries the whole interface.

AarobotoLatinWeights 300, 400, 600robotoLatin, robotoLatin Fallback, sans-serif
display-heroOversized hero statementsDeepL56px · 300 · 1.05 · -0.021em
headline-displayPage title (h1)DeepL48px · 300 · 1.05 · -0.02em
mobile 28px
headline-lgSection headings (h2)The quick brown fox jumps over the lazy dog40px · 300 · 1.05 · -0.018em
headline-mdSub-section headingsThe quick brown fox jumps over the lazy dog28px · 300 · 1.15 · -0.017em
body-mdBody textThe quick brown fox jumps over the lazy dog16px · 400 · 1.5
body-lgLead paragraphsThe quick brown fox jumps over the lazy dog24px · 400 · 1.4
label-mdButtons, navigation and labelsThe quick brown fox jumps over the lazy dog16px · 600 · 1.5
label-smSmall labels and badgesThe quick brown fox jumps over the lazy dog14px · 600 · 1.43

Contrast

Text on #FFFFFF

AaAAA17.6:1
AaAAA17.6:1
AaAAA17.4:1
AaAAA14.6:1

Spacing

4px grid · 91% of values fit

xs4px
sm8px
md12px
lg20px
xl40px
gutter8px

Breakpoints: 512px 767px 869px 1023px 1280px 1400px 1615px

Shapes

Corner radii, most used first.

full9999px · 216×
sm8px · 160×
md12px · 20×
lg16px · 16×

Depth

Shadow

Components

Rebuilt from the measured CSS.

Close
button-primaryFilled button
Contact Sales
button-secondaryFilled button · hover to see the measured hover state
Products
button-ghostText button
Card
cardCard
Inline link
linkInline link

Motion

Interface transitions

0.15s0.3s0.25s
cubic-bezier(0.4, 0, 0.2, 1)ease-in-out

Do’s and don’ts

Rules written from the measurements, so a coding agent stays on style.

  • Use #FFFFFF for the page and lift surfaces in small steps: #F8F8F8, #DEFDEE, #F5F5F5, #DEF5FF.
  • Keep text in 4 levels: #191919, #091A2B, #0A1B2C, #292929.
  • Reserve #0F2B46 for primary actions and key highlights.
  • Set headlines in robotoLatin with tight tracking (-0.02em).
  • Keep spacing on the 4px grid.
  • Make buttons and chips fully rounded (9999px); most other elements use 8px corners.
  • Introduce new font families beyond robotoLatin.
  • Use #0F2B46 for large backgrounds or body text.
  • Make interface transitions slower than 0.3s.
DESIGN.md216 lines

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.

Prompt · DESIGN.md attached

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.

Explore the tool

FAQ

Questions

What can I build with the DeepL 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, robotoLatin 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 DeepL’s official design system?

No. Sitepeel measured it from deepl.com’s public page on October 21, 2026. It is an independent analysis, not made or approved by DeepL.

Can I use DeepL’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 DeepL’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.