Developer tools · DESIGN.md · measured November 4, 2026

WorkOS design system

Light interface · Untitled Sans · 100px corners

#FFFFFF
#F9F9FB
#29363D
#6363F1

Download DESIGN.md

From workos.com ↗ · 433 elements at 1440×900 and 390×844 Independent analysis, not affiliated with WorkOS

WorkOS color palette

12 colors with hex codes, grouped by where each one is used on the page.

Surfaces

White#FFFFFFbackground · --um-input-bg-activePage background · 12×

Snow#F9F9FBsurface-container-low · --um-input-bgRaised areas one step from the page · 6×

Near Black#000000inverse-surfaceHigh-contrast fills · 2×

Text

Deep Blue#29363Don-surface · --light-1Primary text and headings · 46×

Indigo#656B8Aon-surface-variant · --foreground-light-2Secondary text · 38×

Indigo#717AA8on-surface-mutedMuted text and metadata · 16×

White#FFFFFFon-primaryText and icons on primary

Accents

Indigo#6363F1primary · --brand-purplePrimary buttons and calls to action · 16×

Vivid Teal#23F0C3secondary · --dark-accentAccent (CSS variable) · 12×

Light Violet#D272FFtertiaryAccent in text, fills and borders · 18×

Borders

Mist#E8EAEDoutline · --border-colorBorders and dividers · 35×

White 20%#FFFFFF33outline-variantSecondary dividers · 3×

Gradients

WorkOS fonts and type scale

2 families.

AaUntitled SansWeights 400, 500Untitled Sans, Untitled Fallback, Arial, sans-serif

AaIBM Plex MonoMonospace · Weights 400IBM Plex Mono, sans-serif

headline-displayPage title (h1)WorkOS80px · 500 · 1.05 · -0.07em
mobile 42px

headline-lgSection headings (h2)The quick brown fox jumps over the lazy dog52px · 500 · 1.07 · -0.05em
mobile 32px

headline-mdSub-section headingsThe quick brown fox jumps over the lazy dog32px · 500 · 1.2 · -0.04em

headline-smCard and feature titlesThe quick brown fox jumps over the lazy dog28px · 500 · 1.2 · -0.05em
mobile 20px

title-lgSmall titlesThe quick brown fox jumps over the lazy dog20px · 500 · 1.2 · -0.01em

body-mdBody textThe quick brown fox jumps over the lazy dog16px · 400 · 1.2

body-lgLead paragraphsThe quick brown fox jumps over the lazy dog19px · 400 · 1.6 · -0.01em

body-smSecondary and small textThe quick brown fox jumps over the lazy dog14px · 400 · 1.43

label-mdButtons, navigation and labelsThe quick brown fox jumps over the lazy dog16px · 500 · 1.2

label-smSmall labels and badgesThe quick brown fox jumps over the lazy dog14px · 500 · 1.2

codeCode and technical valuesconst ready = true;14px · 400 · 1.2

Contrast

Text on #FFFFFF

AaAAA12.4:1

AaAA5.2:1

AaLarge only4.1:1

Spacing

No strict grid · 71% are multiples of 4px

xs2px

sm8px

md12px

lg22px

xl64px

gutter12px

section120px

Breakpoints: 479px 480px 767px 768px 991px 992px 1090px 1100px 1140px

Shapes

Corner radii, most used first.

lg100px · 160×

md8px · 56×

full9999px · 40×

sm4px · 12×

Depth

Shadow

WorkOS UI components

Rebuilt from the measured CSS.

Get started

button-primaryFilled button · hover to see the measured hover state

Passport

button-outlineOutlined button · hover to see the measured hover state

button-ghostOutlined button

Card

cardCard

Inline link

linkInline link

Motion

Interface transitions

0.2s0.15s

ease

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: #F9F9FB.
Keep text in 3 levels: #29363D, #656B8A, #717AA8.
Reserve #6363F1 for primary actions and key highlights.
Set headlines in Untitled Sans with tight tracking (-0.07em).
Reuse the measured spacing steps (8px, 12px, 22px).
Use 100px corners on most elements; larger surfaces also use 8px and 4px.
Use #717AA8 for body text; it reaches 4.16:1 on #FFFFFF. Keep it for large text or metadata.
Introduce new font families beyond Untitled Sans and IBM Plex Mono.
Use #6363F1 for large backgrounds or body text.
Make interface transitions slower than 0.2s.

WorkOS DESIGN.md249 lines

---
version: alpha
name: WorkOS
description: "Light interface measured from workos.com: Untitled Sans type, indigo accents, tonal surfaces and 100px corners."
colors:
  background: "#FFFFFF"
  surface: "#FFFFFF"
  on-surface: "#29363D"
  on-background: "#29363D"
  on-surface-variant: "#656B8A"
  on-surface-muted: "#717AA8"
  surface-container-low: "#F9F9FB"
  outline: "#E8EAED"
  outline-variant: "#FFFFFF33"
  primary: "#6363F1"
  on-primary: "#FFFFFF"
  inverse-surface: "#000000"
  secondary: "#23F0C3"
  tertiary: "#D272FF"
typography:
  headline-display:
    fontFamily: Untitled Sans
    fontSize: 80px
    fontWeight: 500
    lineHeight: 1.05
    letterSpacing: -0.07em
  headline-lg:
    fontFamily: Untitled Sans
    fontSize: 52px
    fontWeight: 500
    lineHeight: 1.07
    letterSpacing: -0.05em
  headline-md:
    fontFamily: Untitled Sans
    fontSize: 32px
    fontWeight: 500
    lineHeight: 1.2
    letterSpacing: -0.04em
  headline-sm:
    fontFamily: Untitled Sans
    fontSize: 28px
    fontWeight: 500
    lineHeight: 1.2
    letterSpacing: -0.05em
  title-lg:
    fontFamily: Untitled Sans
    fontSize: 20px
    fontWeight: 500
    lineHeight: 1.2
    letterSpacing: -0.01em
  body-md:
    fontFamily: Untitled Sans
    fontSize: 16px
    fontWeight: 400
    lineHeight: 1.2
  body-lg:
    fontFamily: Untitled Sans
    fontSize: 19px
    fontWeight: 400
    lineHeight: 1.6
    letterSpacing: -0.01em
  body-sm:
    fontFamily: Untitled Sans
    fontSize: 14px
    fontWeight: 400
    lineHeight: 1.43
  label-md:
    fontFamily: Untitled Sans
    fontSize: 16px
    fontWeight: 500
    lineHeight: 1.2
  label-sm:
    fontFamily: Untitled Sans
    fontSize: 14px
    fontWeight: 500
    lineHeight: 1.2
  code:
    fontFamily: IBM Plex Mono
    fontSize: 14px
    fontWeight: 400
    lineHeight: 1.2
  headline-display-mobile:
    fontFamily: Untitled Sans
    fontSize: 42px
    fontWeight: 500
    lineHeight: 1.05
    letterSpacing: -0.07em
  headline-sm-mobile:
    fontFamily: Untitled Sans
    fontSize: 20px
    fontWeight: 500
    lineHeight: 1.2
    letterSpacing: -0.05em
  headline-lg-mobile:
    fontFamily: Untitled Sans
    fontSize: 32px
    fontWeight: 500
    lineHeight: 1.1
    letterSpacing: -0.05em
rounded:
  sm: 4px
  md: 8px
  lg: 100px
  full: 9999px
spacing:
  xs: 2px
  sm: 8px
  md: 12px
  lg: 22px
  xl: 64px
  gutter: 12px
  section: 120px
components:
  button-primary:
    backgroundColor: "{colors.primary}"
    textColor: "{colors.on-primary}"
    typography: "{typography.label-md}"
    rounded: "{rounded.lg}"
    padding: 12px 24px
    height: 43px
  button-primary-hover:
    backgroundColor: "#7777F3"
  button-outline:
    backgroundColor: "{colors.surface-container-low}"
    textColor: "{colors.on-surface}"
    typography: "{typography.label-md}"
    rounded: "{rounded.md}"
    padding: 8px 20px 8px 8px
    height: 66px
  button-outline-hover:
    backgroundColor: "#F3F4F7"
  button-ghost:
    textColor: "{colors.primary}"
    typography: "{typography.body-sm}"
    rounded: "{rounded.lg}"
    padding: 9.5px 20px
    height: 35px
  card:
    backgroundColor: "#181B39"
    textColor: "{colors.on-primary}"
    typography: "{typography.body-md}"
    rounded: 18px
    padding: 0px
  link:
    textColor: "{colors.primary}"
---

# WorkOS Design System

## Overview

WorkOS describes itself as: “Developer APIs/SDKs for Enterprise Ready features like Single Sign-On, Directory Sync, Audit Logging, and more. Get started for free.” The interface is light, built on **White (#FFFFFF)** with **Deep Blue (#29363D)** text, and **Indigo (#6363F1)** as the main accent.

Type is set in **Untitled Sans**, with **IBM Plex Mono** for code. Headlines run large with tight negative tracking; body text is 16px. Depth comes from soft drop shadows. Corners are mostly 100px.

Measured from [workos.com](https://workos.com/) on November 4, 2026 at 1440×900 and 390×844 from 433 rendered elements. Values are computed styles from the live page, not the original source files.

## Colors

The palette has 12 roles, plus gradient stops #25DFF9, #21FF94, #A683FF, #7772E5.

- **White (#FFFFFF):** Page background, seen 12 times. Token `background`, CSS `--um-input-bg-active`.
- **Deep Blue (#29363D):** Primary text and headings, seen 46 times. Token `on-surface`, CSS `--light-1`.
- **Indigo (#656B8A):** Secondary text, seen 38 times. Token `on-surface-variant`, CSS `--foreground-light-2`.
- **Indigo (#717AA8):** Muted text and metadata, seen 16 times. Token `on-surface-muted`.
- **Snow (#F9F9FB):** Raised areas one step from the page, seen 6 times. Token `surface-container-low`, CSS `--um-input-bg`.
- **Mist (#E8EAED):** Borders and dividers, seen 35 times. Token `outline`, CSS `--border-color`.
- **White 20% (#FFFFFF33):** Secondary dividers, seen 3 times. Token `outline-variant`.
- **Indigo (#6363F1):** Primary buttons and calls to action, seen 16 times. Token `primary`, CSS `--brand-purple`.
- **White (#FFFFFF):** Text and icons on primary. Token `on-primary`.
- **Near Black (#000000):** High-contrast fills, seen 2 times. Token `inverse-surface`.
- **Vivid Teal (#23F0C3):** Accent (CSS variable), seen 12 times. Token `secondary`, CSS `--dark-accent`.
- **Light Violet (#D272FF):** Accent in text, fills and borders, seen 18 times. Token `tertiary`.

## Typography

**Untitled Sans** and **IBM Plex Mono** (monospace) share the interface. Fallback stack: `Untitled Sans, Untitled Fallback, Arial, sans-serif`.

- **headline-display:** Untitled Sans 80px at weight 500, line height 1.05, tracking -0.07em (42px on mobile). Page title (h1).
- **headline-lg:** Untitled Sans 52px at weight 500, line height 1.07, tracking -0.05em (32px on mobile). Section headings (h2).
- **headline-md:** Untitled Sans 32px at weight 500, line height 1.2, tracking -0.04em. Sub-section headings.
- **headline-sm:** Untitled Sans 28px at weight 500, line height 1.2, tracking -0.05em (20px on mobile). Card and feature titles.
- **title-lg:** Untitled Sans 20px at weight 500, line height 1.2, tracking -0.01em. Small titles.
- **body-md:** Untitled Sans 16px at weight 400, line height 1.2. Body text.
- **body-lg:** Untitled Sans 19px at weight 400, line height 1.6, tracking -0.01em. Lead paragraphs.
- **body-sm:** Untitled Sans 14px at weight 400, line height 1.43. Secondary and small text.
- **label-md:** Untitled Sans 16px at weight 500, line height 1.2. Buttons, navigation and labels.
- **label-sm:** Untitled Sans 14px at weight 500, line height 1.2. Small labels and badges.
- **code:** IBM Plex Mono 14px at weight 400, line height 1.2. Code and technical values.

## Layout

Spacing is mostly on a 4px grid (71% of measured values), with some off-grid steps. Match the measured scale rather than rounding everything.

- **Scale:** xs 2px, sm 8px, md 12px, lg 22px, xl 64px.
- **Sections:** 120px vertical padding between major sections.
- **Gaps:** 12px is the most common gap in flex and grid layouts.
- **Breakpoints:** 479px, 480px, 767px, 768px, 991px, 992px, 1090px, 1100px, 1140px.

## Elevation & Depth

Raised elements use soft drop shadows. The most used recipes:

- `rgba(17, 7, 53, 0.05) 0px 51px 78px 0px, rgba(17, 7, 53, 0.035) 0px 21.3066px 35.4944px 0px, rgba(17, 7, 53, 0.03) 0px 11.3915px 18.9418px 0px, rgba(17, 7, 53, 0.024) 0px 6.38599px 9.8801px 0px, rgba(17, 7, 53, 0.02) 0px 3.39155px 4.58665px 0px, rgba(17, 7, 53, 0.016) 0px 1.4113px 1.55262px 0px, rgba(41, 56, 78, 0.05) 0px 1px 0px 0px inset`
- `rgba(23, 6, 100, 0.035) 0px 24px 22px 0px, rgba(23, 6, 100, 0.055) 0px 8.5846px 8.03036px 0px, rgba(23, 6, 100, 0.067) 0px 4.77692px 3.89859px 0px, rgba(23, 6, 100, 0.082) 0px 2.63479px 1.91116px 0px, rgba(23, 6, 100, 0.12) 0px 1.15891px 0.755676px 0px`
- `rgba(3, 3, 6, 0.07) 0px 100px 80px 0px, rgba(3, 3, 6, 0.05) 0px 41.7776px 33.4221px 0px, rgba(3, 3, 6, 0.043) 0px 22.3363px 17.869px 0px, rgba(3, 3, 6, 0.035) 0px 12.5216px 10.0172px 0px, rgba(3, 3, 6, 0.027) 0px 6.6501px 5.32008px 0px, rgba(3, 3, 6, 0.02) 0px 2.76726px 2.21381px 0px`

## Shapes

Most elements use 100px corners. Measured radii, most used first:

- **lg (100px):** 160 elements.
- **md (8px):** 56 elements.
- **full (9999px):** 40 elements.
- **sm (4px):** 12 elements.

## Components

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

- **button-primary (“Get started”):** #6363F1 fill, #FFFFFF text, 16px/500, 100px radius, padding 12px 24px, shadow `rgba(23, 6, 100, 0.035) 0px 24px 22px 0px, rgba(23, 6, 100, 0.055) 0px 8.5846px 8.03036px 0px, rgba(23, 6, 100, 0.067) 0px 4.77692px 3.89859px 0px, rgba(23, 6, 100, 0.082) 0px 2.63479px 1.91116px 0px, rgba(23, 6, 100, 0.12) 0px 1.15891px 0.755676px 0px`.
- **button-primary-hover:** background #7777F3, text #FFFFFF on hover.
- **button-outline (“Passport”):** #F9F9FB fill, #29363D text, 16px/500, 8px radius, padding 8px 20px 8px 8px, border 1px solid #E7E8EC.
- **button-outline-hover:** background #F3F4F7, text #29363D on hover.
- **button-ghost (“Sign in”):** transparent fill, #6363F1 text, 14px/400, 100px radius, padding 9.5px 20px, border 1px solid #E8EAED.
- **card:** #181B39 fill, #FFFFFF text, 16px/400, 18px radius, padding 0px, shadow `rgba(3, 3, 6, 0.07) 0px 100px 80px 0px, rgba(3, 3, 6, 0.05) 0px 41.7776px 33.4221px 0px, rgba(3, 3, 6, 0.043) 0px 22.3363px 17.869px 0px, rgba(3, 3, 6, 0.035) 0px 12.5216px 10.0172px 0px, rgba(3, 3, 6, 0.027) 0px 6.6501px 5.32008px 0px, rgba(3, 3, 6, 0.02) 0px 2.76726px 2.21381px 0px`.
- **link:** transparent fill, #6363F1 text, padding 0px.

## Do's and Don'ts

- Do use #FFFFFF for the page and lift surfaces in small steps: #F9F9FB.
- Do keep text in 3 levels: #29363D, #656B8A, #717AA8.
- Do reserve #6363F1 for primary actions and key highlights.
- Do set headlines in Untitled Sans with tight tracking (-0.07em).
- Do reuse the measured spacing steps (8px, 12px, 22px).
- Do use 100px corners on most elements; larger surfaces also use 8px and 4px.
- Don't use #717AA8 for body text; it reaches 4.16:1 on #FFFFFF. Keep it for large text or metadata.
- Don't introduce new font families beyond Untitled Sans and IBM Plex Mono.
- Don't use #6363F1 for large backgrounds or body text.
- Don't make interface transitions slower than 0.2s.

## Motion

Interface transitions are quick: 0.2s, 0.15s.

- **Easing:** `ease`.

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

Fonts

What font does WorkOS use?

WorkOS uses Untitled Sans (weights 400 and 500), with IBM Plex Mono for code on workos.com. Page titles are 80px at weight 500 (42px on phones) and body text is 16px. Measured on November 4, 2026.

AaUntitled Sans · 400, 500
AaIBM Plex Mono · 400

Find every font on workos.com with Font finder →

Colors

WorkOS colors: palette and hex codes

WorkOS’s main colors are #FFFFFF (white) for the background, #29363D (deep blue) for text and #6363F1 (indigo) as the main accent, with #23F0C3 (vivid teal) and #D272FF (light violet) as other accents. Measured on November 4, 2026.

#FFFFFF · white
#29363D · deep blue
#656B8A · indigo
#717AA8 · indigo
#F9F9FB · snow
#E8EAED · mist
#6363F1 · indigo
#000000 · near black

Get workos.com’s palette as CSS or Tailwind with Colors →

Tech stack

What is WorkOS built with?

WorkOS’s website (workos.com) is built with Webflow, jQuery, Tippy.js, Swiper and Cloudflare. Measured on November 4, 2026.

JavaScript framework: jQuery 3.5.1
UI & CSS: Tippy.js, Swiper
Hosting & CDN: Cloudflare
Analytics: Reddit Pixel, Google Ads, Google Analytics, Google Tag Manager
Marketing & support: HubSpot
Site builder & CMS: Webflow

Check workos.com live with Tech stack →

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.

Guides

Need a page behind a login?

The DESIGN.md generator Chrome extension makes one from any page you have open, including dashboards and pages behind a login.

See the Chrome extension

More in Developer tools

All DESIGN.md examples →

ZedBrand zed.dev · plexSerif

AstroBrand astro.build · Obviously

Auth0Brand auth0.com · Aeonik

BunBrand bun.sh · Archivo

ClerkBrand clerk.com · geistNumbers

CloudflareBrand cloudflare.com · STK Bureau Sans

Not in the library? Make a DESIGN.md from any site.

FAQ

WorkOS design system questions

What font does WorkOS use?

WorkOS’s website uses Untitled Sans (weights 400 and 500), with IBM Plex Mono for code. Page titles are 80px at weight 500 (42px on phones) and body text is 16px. Measured on November 4, 2026.

What are the WorkOS colors and hex codes?

On workos.com: #FFFFFF (white) for the background, #29363D (deep blue) for text and #6363F1 (indigo) as the main accent, with #23F0C3 (vivid teal) and #D272FF (light violet) as other accents. The color palette above lists all 12 colors with their hex codes and where each one is used.

What is the WorkOS design system?

The design system on this page is workos.com’s, as measured on November 4, 2026: Untitled Sans type, #6363F1 as the main color and 100px corners, written down as a DESIGN.md. It is not WorkOS’s own documentation.

What is WorkOS built with?

WorkOS’s website (workos.com) is built with Webflow, jQuery, Tippy.js, Swiper and Cloudflare. The full tech stack Sitepeel found: jQuery, Tippy.js, Cloudflare, Reddit Pixel, HubSpot, Webflow, Swiper, Google Ads, Google Analytics and Google Tag Manager. Measured on November 4, 2026.

What is the WorkOS DESIGN.md?

A plain-text file with WorkOS’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 WorkOS’s official design system?

No. Sitepeel measured it from workos.com’s public page on November 4, 2026. It is an independent analysis, not made or approved by WorkOS.

Can I use WorkOS’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 WorkOS’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.