Long Tail design system

longtailhealth.com

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

CopyCopy design system

Corrections or removal: agent@clinicalterminal.com

Palette

• Ground

  #FFFFFF

  --brand--white
• Ink

  #040046
• Accent on the ground

  #4F4D7E
• Primary

  #4F4D7E
• On primary

  #FFFFFF

  --brand--white
• Secondary accent

  #146EF5
• Dark

  #040046

  --box-shadow--bs-neutral-small
• Site background

  #FFFFFF

  --brand--white

Color ramps

Other named colors

• --box-shadow--bs-neutral-small #040046
• --box-shadow--bs-neutral-medium #040046
• --box-shadow--bs-neutral-large #040046
• --box-shadow--bs-neutral-regular #040046
• --brand--cool #F3F7F8
• --brand--pacific #080099
• --brand--deep-sea #040046
• --brand--white #FFFFFF
• --brand--card #E8EFF1
• --brand--mist #AFC6EB
• --brand--coral #FF760F
• --brand--neutral #FFFAF4
• --brand--coral-tint #FFC193
• --brand--starfish #FF91FF
• --brand--warm #FFF6E9
• --brand--deep-sea-70 #040046

Type

• 40pxLong Tail
• 38pxLong Tail
• 32pxLong Tail
• 28pxLong Tail
• 24pxLong Tail
• 21pxLong Tail
• 18pxLong Tail
• 16pxLong Tail

Shape & depth

Cards and panels: 16px corners · buttons and chips: 300px.

Corner radii

• 999px

  used in 8 rules
• 24px

  used in 7 rules
• 16px

  used in 6 rules
• 50%

  used in 5 rules
• 2px

  used in 3 rules
• 32px

  used in 3 rules
• 12px

  used in 3 rules
• 3px

  used in 2 rules
• 100%

  used in 2 rules
• 300px

  used in 1 rule

Shadows

• 0 1px 3px #0400460f

  used in 3 rules
• 0 8px 24px #0400461a

  used in 3 rules
• 0 2px 4px #19213d14

  used in 2 rules
• 0 0 #0000

  used in 2 rules
• 0 0 0 1px #0000001a, 0 1px 3px #0000001a

  used in 1 rule
• 0 0 3px #3336

  used in 1 rule

Gradients

• linear-gradient(135deg, #ff760f 0%, #ff91ff 100%)

  used in 4 rules
• linear-gradient(#08080899, #08080899)

  used in 3 rules
• linear-gradient(#080808b3, #080808b3)

  used in 3 rules
• linear-gradient(90deg, #f8f8f800, #f8f8f8 95%)

  used in 2 rules
• linear-gradient(135deg, #8423ffb5, #ff881900)

  used in 1 rule
• radial-gradient(circle, #fa2d9b, #ff9467 81%, #ffd231)

  used in 1 rule

Breakpoints: 479px · 767px · 768px · 991px · 1440px · 1920px

Voice

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

DESIGN.md

The file Copy design system puts on your clipboard. Open the raw file.

---
generator: clinical-terminal-brand-kit
company: "Long Tail"
domain: "longtailhealth.com"
colors:
  primary: "#4F4D7E"
  onPrimary: "#FFFFFF"
  dark: "#040046"
  accent: "#146EF5"
  background: "#FFFFFF"
ground:
  mode: light
  hex: "#FFFFFF"
  ink: "#040046"
  accent: "#4F4D7E"
fonts:
  heading: "Archivo"
  body: "DM Sans"
radius:
  card: "16px"
  button: "300px"
---

# Design System — Long Tail

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

## Ground
- **Light ground** (#FFFFFF), from Long Tail's site background #FFFFFF. Pages and panels sit on it.
- Main text: #040046 (19.2:1 on the ground).
- Secondary text is #040046 at 88% / 76% / 60%; hairlines and plate borders #040046 at 16%.

## Color
- **Accent on the ground: #4F4D7E** (7.79:1). Use it for kickers, key numbers and one highlight per screen, not for large fills.
- **Primary #4F4D7E** for filled shapes (buttons, chips, bars), with #FFFFFF text on it (7.79:1).
- Secondary accent #146EF5: charts and a second data series only.
- Quote every hex exactly as written above.

## Type
- Headlines: **Archivo**. Body: **DM Sans**. Both on Google Fonts.
- Long Tail's site uses Syne / DM Sans; these are the closest free look-alikes.

## Shape
- Cards and panels: 16px corners. Buttons and chips: 300px.

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

## Tokens from the site's stylesheets

### Color ramps

- **Colors System Green** (`--colors--system--green-N`): 100 `#EEF9F5` · 200 `#E2FBEA` · 300 `#ADECBB` · 400 `#74D184`
- **Colors System Yellow** (`--colors--system--yellow-N`): 100 `#FFFAE9` · 200 `#FAEDBF` · 300 `#FBE080` · 400 `#EFC42C`
- **Colors System Red** (`--colors--system--red-N`): 100 `#FFF5F6` · 200 `#FAC6D0` · 300 `#FB93A3` · 400 `#FE566B`
- **Colors System Blue** (`--colors--system--blue-N`): 100 `#E3EFFF` · 200 `#C3DDFF` · 300 `#8DC1FF` · 400 `#64A7FF`

### Other named colors

- `--box-shadow--bs-neutral-small`: `#040046`
- `--box-shadow--bs-neutral-medium`: `#040046`
- `--box-shadow--bs-neutral-large`: `#040046`
- `--box-shadow--bs-neutral-regular`: `#040046`
- `--brand--cool`: `#F3F7F8`
- `--brand--pacific`: `#080099`
- `--brand--deep-sea`: `#040046`
- `--brand--white`: `#FFFFFF`
- `--brand--card`: `#E8EFF1`
- `--brand--mist`: `#AFC6EB`
- `--brand--coral`: `#FF760F`
- `--brand--neutral`: `#FFFAF4`
- `--brand--coral-tint`: `#FFC193`
- `--brand--starfish`: `#FF91FF`
- `--brand--warm`: `#FFF6E9`
- `--brand--deep-sea-70`: `#040046`

### Typefaces

- DM Sans (`--core--fonts--family--primary-font`) — on Google Fonts
- Syne (`--core--fonts--family--headlines`)
- Uncut Sans

### Type scale (most-used sizes)

`40px` · `38px` · `32px` · `28px` · `24px` · `21px` · `18px` · `16px` · `14px` · `13px` · `12px` · `11px`

### Letter-spacing

`-.54px` (5) · `1.4px` (4) · `.08em` (3) · `-1px` (3) · `-.5px` (3) · `-.72px` (2)

### Corner radii (most-used)

`999px` · `24px` · `16px` · `50%` · `2px` · `32px` · `12px` · `3px` · `100%` · `300px`

### Shadows

- `0 1px 3px #0400460f`
- `0 8px 24px #0400461a`
- `0 2px 4px #19213d14`
- `0 0 #0000`
- `0 0 0 1px #0000001a, 0 1px 3px #0000001a`
- `0 0 3px #3336`

### Gradients

- `linear-gradient(135deg, #ff760f 0%, #ff91ff 100%)`
- `linear-gradient(#08080899, #08080899)`
- `linear-gradient(#080808b3, #080808b3)`
- `linear-gradient(90deg, #f8f8f800, #f8f8f8 95%)`
- `linear-gradient(135deg, #8423ffb5, #ff881900)`
- `radial-gradient(circle, #fa2d9b, #ff9467 81%, #ffd231)`

### Breakpoints

479px · 767px · 768px · 991px · 1440px · 1920px