Datadog design system

What font does Datadog use?

Datadog’s website uses National for headings and body text. National is not on Google Fonts; the closest free match is Figtree.

Datadog colour palette

Datadog’s home page is light (#FFFFFF background, #212529 text) and uses #632CA6 for its main actions. Its palette: #FFFFFF, #110617, #000000, #F6F6F6, #212529, #E2E2E2.

• #FFFFFF
  72.5% · backgrounds
• #110617
  12.4% · backgrounds
• #000000
  7% · backgrounds
• #F6F6F6
  4.3% · backgrounds
• #212529
  2.2% · text
• #E2E2E2
  1.2% · text
• #632CA6
  0.2% · backgrounds, text
• #969696
  0.1% · text
• #555555
  0.1% · text
• #616161
  hairlines and grid lines

Type scale

Each size the page sets text in, with its weight and line height. Datadog’s largest type is 68px at weight 600.

Spacing and shape

Spacing sits on a 4px grid: 4px, 8px, 12px, 16px, 20px, 24px, 28px, 32px, 36px, 40px, 48px, 52px.

Corner radii: 1px, 3px, 4px, 4.8px, 6px, pill. 1 shadow level measured.

What makes Datadog look like Datadog

Almost entirely neutral: 99% of the page is painted in #FFFFFF and #110617.

#632CA6 is an accent: 0.2% of the page, used for backgrounds and text and small fills such as buttons. Don't fill large areas with it.

#8000FF is an accent: under 0.1% of the page, used for text only. Don't fill large areas with it.

The largest type (68px NationalWeb) is semibold (600).

Datadog DESIGN.md for Claude Code, Cursor and Lovable

A DESIGN.md is the brief an AI coding tool reads before it writes UI. This one carries everything on this page as rules a model follows: the allowed colours and what each is for, the fonts with free stand-ins, the type scale, spacing, corners, and the things Datadog’s design never does.

Put it in your project root and ask your tool to follow it: “Read DESIGN.md and build [your product] in this design language.” It describes a style, not Datadog’s product, so use your own name, words and images.

Download Datadog DESIGN.md · View it as text

As CSS variables

The measured values as CSS custom properties, with free fonts standing in for licensed ones. Use them to learn from or to start a project in a similar style; Datadog’s name, logo, words and images are theirs.

@import url("https://fonts.googleapis.com/css2?family=Figtree:wght@300;400;500;600;700&display=swap");
@import url("https://fonts.googleapis.com/css2?family=Inter+Tight:wght@300;600&display=swap");
@import url("https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400&display=swap");

:root {
  --color-background: #FFFFFF; /* Background */
  --color-surface: #F6F6F6; /* Surface */
  --color-text: #212529; /* Text */
  --color-text-muted: #555555; /* Text muted */
  --color-border: #E2E2E2; /* Border */
  --color-action: #632CA6; /* Action */
  --color-on-action: #FFFFFF; /* On action */
  --color-110617: #110617; /* 12.4% of the page, as fills */
  --color-000000: #000000; /* 7% of the page, as fills */
  --font-body: "NationalWeb", "Figtree", sans-serif; /* NationalWeb on the site; Figtree renders */
  --font-interface: "Helvetica", "Inter Tight", sans-serif; /* Helvetica on the site; Inter Tight renders */
  --font-code: "RobotoMono-Regular", "JetBrains Mono", monospace; /* RobotoMono-Regular on the site; JetBrains Mono renders */
  --type-display-large: 68px; /* Display Large, weight 600 */
  --type-display-large-leading: 68px;
  --type-display-small: 36px; /* Display Small, weight 700 */
  --type-display-small-leading: 40px;
  --type-headline: 32px; /* Headline, weight 300 */
  --type-headline-leading: 38px;
  --type-title-large: 22px; /* Title Large, weight 300 */
  --type-title-large-leading: 30px;
  --type-title-medium: 20px; /* Title Medium, weight 600 */
  --type-title-medium-leading: normal;
  --type-title-small: 18px; /* Title Small, weight 300 */
  --type-title-small-leading: 22px;
  --type-body-large: 16px; /* Body Large, weight 700 */
  --type-body-large-leading: 20px;
  --type-body-small: 14px; /* Body Small, weight 300 */
  --type-body-small-leading: 18px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-7: 28px;
  --space-8: 32px;
  --space-9: 36px;
  --space-10: 40px;
  --space-12: 48px;
  --space-13: 52px;
  --space-15: 60px;
  --space-16: 64px;
  --space-17: 68px;
  --space-20: 80px;
  --space-21: 84px;
  --space-25: 100px;
  --space-35: 140px;
  --radius-xs: 1px;
  --radius-sm: 3px;
  --radius-md: 4px;
  --radius-lg: 4.8px;
  --radius-xl: 6px;
  --radius-full: 9999px;
}

How this was measured

PikSpec’s scanner read the datadoghq.com home page in Chrome at 1440px wide on 15 October 2026: the computed styles of its elements, the fonts that rendered and how much of the page each colour covers. Websites change; capture the page yourself with PikSpec for today’s values, any page, and exports in five formats.

Datadog is a trademark of its owner. This page is an independent measurement and is not affiliated with or endorsed by Datadog.

Similar light designs: Airbnb · Airtable · Allbirds · Anthropic · Apple · Arc

Contact PikSpec

Email support@pikspec.com for support, privacy requests or content reports.