[Design systems](/design-systems/) / Fathom

# Fathom design system

fathomhealth.com

Read from Fathom's public website by Clinical Terminal. Not reviewed by Fathom. Copy it and paste it into Claude as inspiration.

Corrections or removal: <agent@clinicalterminal.com>

![Fathom homepage](https://firebasestorage.googleapis.com/v0/b/clinical-ai-design.firebasestorage.app/o/snapshots%2Fdesign-systems%2Fthumbs%2F100128.jpg?alt=media)

## Palette

- Ground

  \#FFFFFF

  \--white

- Ink

  \#293240

- Accent on the ground

  \#8864BC

- Primary

  \#9A76D0

  \--primary-1

- On primary

  \#000000

- Highlight

  \#529EE6

  \--primary-2

- Dark

  \#293240

  \--black

- Site background

  \#FFFFFF

  \--white

## Color ramps

Gray

1

\#2E3844

2

\#6F8093

3

\#CCD2DD

4

\#F3F5FB

Primary

1

\#9A76D0

2

\#529EE6

3

\#7756A8

## Other named colors

- \--white #FFFFFF
- \--black #293240
- \--dark-black #242B37
- \--success #57A773
- \--warning #F19953
- \--error #ED6A5E

## Type

Headings

IBM Plex Serif

Fathom at a glance

Body

IBM Plex Sans

Clear, readable paragraphs for clinicians, buyers and patients alike.

- 40pxFathom
- 32pxFathom
- 28pxFathom
- 24pxFathom
- 20pxFathom
- 1.25rem · 20pxFathom
- 18pxFathom
- 1rem · 16pxFathom

## Shape & depth

Cards and panels: 10px corners · buttons and chips: 28px.

### Corner radii

- 6px

  used in 10 rules

- 50%

  used in 9 rules

- 1.75rem

  used in 8 rules

- 100px

  used in 8 rules

- 100%

  used in 6 rules

- 28px

  used in 4 rules

- 2px

  used in 3 rules

- 5px

  used in 3 rules

- 1px

  used in 3 rules

- .75rem

  used in 3 rules

### Shadows

- 0 4px 6px #0000000d

  used in 4 rules

- 0 4px 6px #0000

  used in 3 rules

- 0 0 3px 1px #3898ec

  used in 2 rules

- 0 4px 8px #0000

  used in 2 rules

- 0 4px 8px #0000001a

  used in 2 rules

- inset 0 0 100px 100px #0000001a

  used in 2 rules

### Gradients

- linear-gradient(90deg,#000,#0000)

  used in 1 rule

- linear-gradient(135deg,#ff7448,#ff4848 50%,#6248ff)

  used in 1 rule

- linear-gradient(135deg,#ff744826,#ff484826 50%,#6248ff26)

  used in 1 rule

- linear-gradient(#00000080,#00000080)

  used in 1 rule

Breakpoints: 479px · 767px · 768px · 991px

## Voice

Tone: professional. Energy: medium. Written for businesses.

## DESIGN.md

The file Copy design system puts on your clipboard. [Open the raw file](https://firebasestorage.googleapis.com/v0/b/clinical-ai-design.firebasestorage.app/o/snapshots%2Fdesign-systems%2Fmd%2F100128.md?alt=media).

```
---
generator: clinical-terminal-brand-kit
company: "Fathom"
domain: "fathomhealth.com"
colors:
  primary: "#9A76D0"
  onPrimary: "#000000"
  dark: "#293240"
  highlight: "#529EE6"
  background: "#FFFFFF"
ground:
  mode: light
  hex: "#FFFFFF"
  ink: "#293240"
  accent: "#8864BC"
fonts:
  heading: "IBM Plex Serif"
  body: "IBM Plex Sans"
radius:
  card: "10px"
  button: "28px"
---

# Design System — Fathom

> Read from Fathom's public website (fathomhealth.com) by Clinical Terminal. Not reviewed by Fathom.
> Use it as inspiration: borrow the ideas, not Fathom's name, logo or identity.

## Ground
- **Light ground** (#FFFFFF), from Fathom's site background #FFFFFF. Pages and panels sit on it.
- Main text: #293240 (12.93:1 on the ground).
- Secondary text is #293240 at 88% / 76% / 60%; hairlines and plate borders #293240 at 16%.

## Color
- **Accent on the ground: #8864BC** (4.57:1), adjusted from Fathom's primary #9A76D0 so it stays readable. Use it for kickers, key numbers and one highlight per screen, not for large fills.
- **Primary #9A76D0** for filled shapes (buttons, chips, bars), with #000000 text on it (5.88:1).
- Highlight #529EE6 (from Fathom's logo gradient): sparing emphasis, never body text.
- Quote every hex exactly as written above.

## Type
- Headlines: **IBM Plex Serif**. Body: **IBM Plex Sans**. Both on Google Fonts.

## Shape
- Cards and panels: 10px corners. Buttons and chips: 28px.

## Voice
- Tone: professional. Energy: medium. Written for businesses.
- Headlines are short and concrete.

## Tokens from the site's stylesheets

### Color ramps

- **Gray** (`--gray-N`): 1 `#2E3844` · 2 `#6F8093` · 3 `#CCD2DD` · 4 `#F3F5FB`
- **Primary** (`--primary-N`): 1 `#9A76D0` · 2 `#529EE6` · 3 `#7756A8`

### Other named colors

- `--white`: `#FFFFFF`
- `--black`: `#293240`
- `--dark-black`: `#242B37`
- `--success`: `#57A773`
- `--warning`: `#F19953`
- `--error`: `#ED6A5E`

### Typefaces

- IBM Plex Sans — on Google Fonts
- Barlow — on Google Fonts
- IBM Plex Serif — on Google Fonts
- DM Sans — on Google Fonts
- Zilla Slab
- Caveat
- Barlow Condensed
- Inconsolata

### Type scale (most-used sizes)

`40px` · `32px` · `28px` · `24px` · `20px` · `1.25rem` · `18px` · `1rem` · `16px` · `14px` · `12px` · `.75rem`

### Letter-spacing

`1px` (10) · `.125rem` (8) · `2px` (5) · `.01em` (4) · `-1px` (3) · `.015em` (1)

### Corner radii (most-used)

`6px` · `50%` · `1.75rem` · `100px` · `100%` · `28px` · `2px` · `5px` · `1px` · `.75rem`

### Shadows

- `0 4px 6px #0000000d`
- `0 4px 6px #0000`
- `0 0 3px 1px #3898ec`
- `0 4px 8px #0000`
- `0 4px 8px #0000001a`
- `inset 0 0 100px 100px #0000001a`

### Gradients

- `linear-gradient(90deg,#000,#0000)`
- `linear-gradient(135deg,#ff7448,#ff4848 50%,#6248ff)`
- `linear-gradient(135deg,#ff744826,#ff484826 50%,#6248ff26)`
- `linear-gradient(#00000080,#00000080)`

### Breakpoints

479px · 767px · 768px · 991px
```