GrammarlyBrand
DESIGN.md · measured October 21, 2026
Datadog design system
Light interface measured from datadoghq.com: NationalWeb type, violet accents, tonal surfaces and 4px corners.
- Background
- #FFFFFF
- Primary
- #632CA6
- Type
- NationalWeb
- Corners
- 4px
From datadoghq.com ↗ · 360 elements at 1440×900 and 390×844 · Independent analysis, not affiliated with Datadog
Datadog colors
10 roles measured on the page, grouped by where each color is used.
Surfaces
#FFFFFFbackground · --bs-whitePage background · 5×#F6F6F6surface-container-lowRaised areas one step from the page · 1×#000000inverse-surfaceHigh-contrast fills · 1×Text
#212529on-surface · --bs-highlight-colorPrimary text and headings · 11×#555555on-surface-variantSecondary text · 9×#969696on-surface-mutedMuted text and metadata · 7×#FFFFFFon-primaryText and icons on primaryAccents
#632CA6primary · --bs-purplePrimary buttons and calls to action · 6×#9EC5FEsecondaryBrand accent (CSS variable) · 12×Borders
#FFFFFF80outlineBorders and dividers · 1×Gradients
Datadog fonts
One family carries the whole interface.
mobile 38px
mobile 28px
Contrast
Text on #FFFFFF
15.4:17.5:12.96:1Spacing
No strict grid · 72% are multiples of 4px
xs4pxsm8pxmd12pxlg20pxxl48pxgutter8pxBreakpoints: 425px 480px 575.98px 576px 767px 767.98px 768px 991px 991.98px 992px 1199.98px 1200px 1399.98px 1400px
Shapes
Corner radii, most used first.
Depth
Components
Rebuilt from the measured CSS.
Motion
Interface transitions
0.2sease
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: #F6F6F6.
- Keep text in 3 levels: #212529, #555555, #969696.
- Reserve #632CA6 for primary actions and key highlights.
- Reuse the measured spacing steps (8px, 12px, 20px).
- Use 4px corners on most elements.
- Use #969696 for body text; it reaches 3.0:1 on #FFFFFF. Keep it for large text or metadata.
- Introduce new font families beyond NationalWeb.
- Use #632CA6 for large backgrounds or body text.
- Make interface transitions slower than 0.2s.
---
version: alpha
name: Datadog
description: "Light interface measured from datadoghq.com: NationalWeb type, violet accents, tonal surfaces and 4px corners."
colors:
background: "#FFFFFF"
surface: "#FFFFFF"
on-surface: "#212529"
on-background: "#212529"
on-surface-variant: "#555555"
on-surface-muted: "#969696"
surface-container-low: "#F6F6F6"
outline: "#FFFFFF80"
primary: "#632CA6"
on-primary: "#FFFFFF"
inverse-surface: "#000000"
secondary: "#9EC5FE"
typography:
headline-display:
fontFamily: NationalWeb
fontSize: 68px
fontWeight: 600
lineHeight: 1
headline-lg:
fontFamily: NationalWeb
fontSize: 36px
fontWeight: 600
lineHeight: 1.11
body-md:
fontFamily: NationalWeb
fontSize: 14px
fontWeight: 300
lineHeight: 1.29
body-lg:
fontFamily: NationalWeb
fontSize: 22px
fontWeight: 300
lineHeight: 1.43
label-md:
fontFamily: NationalWeb
fontSize: 16px
fontWeight: 700
lineHeight: 1.25
headline-display-mobile:
fontFamily: NationalWeb
fontSize: 38px
fontWeight: 600
lineHeight: 1.11
headline-lg-mobile:
fontFamily: NationalWeb
fontSize: 28px
fontWeight: 600
lineHeight: 1.14
rounded:
md: 4px
full: 9999px
spacing:
xs: 4px
sm: 8px
md: 12px
lg: 20px
xl: 48px
gutter: 8px
components:
button-primary:
backgroundColor: "{colors.primary}"
textColor: "{colors.on-primary}"
rounded: "{rounded.md}"
padding: 16px 24px
height: 54px
button-primary-hover:
backgroundColor: "#7700FF"
button-outline:
textColor: "{colors.primary}"
rounded: "{rounded.md}"
padding: 14px 24px 16px 24px
height: 54px
button-outline-hover:
backgroundColor: "#7700FF"
textColor: "{colors.on-primary}"
button-ghost:
textColor: "{colors.on-primary}"
rounded: "{rounded.md}"
padding: 11px 24px 12px 24px
height: 51px
link:
textColor: "#E2E2E2"
---
# Datadog Design System
## Overview
Datadog describes itself as: “See inside any stack, any app, at any scale, anywhere.” The interface is light, built on **White (#FFFFFF)** with **Cool Graphite (#212529)** text, and **Violet (#632CA6)** as the main accent.
Type is set in **NationalWeb**. Headlines run large; body text is 14px. Depth comes from soft drop shadows. Corners are mostly 4px.
Measured from [datadoghq.com](https://www.datadoghq.com/) on October 21, 2026 at 1440×900 and 390×844 from 360 rendered elements. Values are computed styles from the live page, not the original source files.
## Colors
The palette has 10 roles, plus gradient stops #B37BFF, #4BB3FF, #3023AE, #C024B6.
- **White (#FFFFFF):** Page background, seen 5 times. Token `background`, CSS `--bs-white`.
- **Cool Graphite (#212529):** Primary text and headings, seen 11 times. Token `on-surface`, CSS `--bs-highlight-color`.
- **Slate (#555555):** Secondary text, seen 9 times. Token `on-surface-variant`.
- **Gray (#969696):** Muted text and metadata, seen 7 times. Token `on-surface-muted`.
- **Snow (#F6F6F6):** Raised areas one step from the page, seen 1 time. Token `surface-container-low`.
- **White 50% (#FFFFFF80):** Borders and dividers, seen 1 time. Token `outline`.
- **Violet (#632CA6):** Primary buttons and calls to action, seen 6 times. Token `primary`, CSS `--bs-purple`.
- **White (#FFFFFF):** Text and icons on primary. Token `on-primary`.
- **Near Black (#000000):** High-contrast fills, seen 1 time. Token `inverse-surface`.
- **Light Blue (#9EC5FE):** Brand accent (CSS variable), seen 12 times. Token `secondary`.
## Typography
**NationalWeb** carries the whole interface. Fallback stack: `NationalWeb, Helvetica, Arial, sans-serif`. Other loaded fonts: nationalweb, robotomono-regular, iconfont.
- **headline-display:** NationalWeb 68px at weight 600, line height 1 (38px on mobile). Page title (h1).
- **headline-lg:** NationalWeb 36px at weight 600, line height 1.11 (28px on mobile). Section headings (h2).
- **body-md:** NationalWeb 14px at weight 300, line height 1.29. Body text.
- **body-lg:** NationalWeb 22px at weight 300, line height 1.43. Lead paragraphs.
- **label-md:** NationalWeb 16px at weight 700, line height 1.25. Buttons, navigation and labels.
## Layout
Spacing is mostly on a 4px grid (72% of measured values), with some off-grid steps. Match the measured scale rather than rounding everything.
- **Scale:** xs 4px, sm 8px, md 12px, lg 20px, xl 48px.
- **Gaps:** 8px is the most common gap in flex and grid layouts.
- **Breakpoints:** 425px, 480px, 575.98px, 576px, 767px, 767.98px, 768px, 991px, 991.98px, 992px, 1199.98px, 1200px, 1399.98px, 1400px.
## Elevation & Depth
Raised elements use soft drop shadows. The most used recipes:
- `rgba(0, 0, 0, 0.07) 0px 0px 8px 8px`
## Shapes
Most elements use 4px corners. Measured radii, most used first:
- **md (4px):** 20 elements.
- **full (9999px):** 4 elements.
## Components
Measured from the rendered page. Token values reference the tokens above.
- **button-primary (“FREE TRIAL”):** #632CA6 fill, #FFFFFF text, 18px/700, 4px radius, padding 16px 24px.
- **button-primary-hover:** background #7700FF, text #FFFFFF on hover.
- **button-outline (“SEE THE PLATFORM”):** transparent fill, #632CA6 text, 18px/700, 4px radius, padding 14px 24px 16px 24px, border 1px solid #632CA6.
- **button-outline-hover:** background #7700FF, text #FFFFFF on hover.
- **button-ghost (“LEARN MORE”):** transparent fill, #FFFFFF text, 18px/600, 4px radius, padding 11px 24px 12px 24px, border 1px solid #FFFFFF.
- **link:** transparent fill, #E2E2E2 text, padding 0px.
## Do's and Don'ts
- Do use #FFFFFF for the page and lift surfaces in small steps: #F6F6F6.
- Do keep text in 3 levels: #212529, #555555, #969696.
- Do reserve #632CA6 for primary actions and key highlights.
- Do reuse the measured spacing steps (8px, 12px, 20px).
- Do use 4px corners on most elements.
- Don't use #969696 for body text; it reaches 3.0:1 on #FFFFFF. Keep it for large text or metadata.
- Don't introduce new font families beyond NationalWeb.
- Don't use #632CA6 for large backgrounds or body text.
- Don't make interface transitions slower than 0.2s.
## Motion
Interface transitions are quick: 0.2s.
- **Easing:** `ease`.
- **Reduced motion:** the page responds to `prefers-reduced-motion`.
Generated by [Sitepeel](https://sitepeel.dev/design-md/datadoghq.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 Datadog 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, NationalWeb 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 Datadog’s official design system?
No. Sitepeel measured it from datadoghq.com’s public page on October 21, 2026. It is an independent analysis, not made or approved by Datadog.
Can I use Datadog’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 Datadog’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.




