Hume AI — Design System

Name: Hume AI design system
Creator: Mozaika
Keywords: design system, design tokens, Hume AI, light, tailwind

light · modern · medium · tailwind · confidence 92%

Hume measures feeling in Fellix at 48px on a tuned 520 weight, warm cream #FFF9F3, and expression-blob visualizations as the only exuberance. The 'Emotional Intelligence Lab for Voice AI' keeps its own voice clinical-warm — rounded geometry, gentle gradients, research-paper composure around empathic technology.

Open in Mozaika →

This is a static, crawlable rendering for search & AI engines. The interactive version — filters, live decode console, copy & export — is at https://mozaika.design/ds/hume-ai.

Tokens

Hume AI's decoded design system: background #FFF9F3, text #222222, accent #FFFAF4, link #FCE0EE, primary #E6D1ED; type scale h1 48px / h2 30px / body 16px; 4px spacing base; 0px base radius. The single interactive/action color is #FFFAF4 — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

Role	Value
bg	`#FFF9F3`
surface	`#F1ECE6`
border	`#DDD8D3`
text	`#222222`
text_muted	`#757371`
primary	`#E6D1ED`
accent	`#FFFAF4`
link	`#FCE0EE`
secondary	`#FFDFB8`
button_bg	`#FFFAF4`
button_text	`#FFFFFF`

Using these colors

Action color #FFFAF4 — the single interactive color; only on things you click or must notice, never large fills.
accent, button_bg are all #FFFAF4 — one role, not several (the action color).
accent #FFFAF4 — THE accent / action color — interactive & must-notice only (buttons, links, focus, one key highlight); never large fills or backgrounds. Scarcity is what makes it read as designed.
primary #E6D1ED — a neutral UI color (chips, tags, icon fills, chrome), not the action color (action = #FFFAF4).
link #FCE0EE — fails contrast on the background (~1.2:1) — this is a dark UI color, NOT a readable link; use the text or action color for links (verify against the reference).
secondary #FFDFB8 — optional secondary accent — LOW decode confidence; use rarely (a status color or a single decorative moment) or omit it entirely. Prefer one accent unless the reference clearly shows two.

Typography

Heading: Fellix
Body: Fellix
h1: 48px
h2: 30px
body: 16px

Spacing

base unit: 4px
scale: 2px, 4px, 6px, 8px, 12px, 16px, 24px, 32px

Radii

base: 0px
button: 9999px

Per-section tokens (9)

Export: DESIGN.md

# Hume AI — Design System

> light, modern, medium, tailwind

Hume measures feeling in Fellix at 48px on a tuned 520 weight, warm cream #FFF9F3, and expression-blob visualizations as the only exuberance. The 'Emotional Intelligence Lab for Voice AI' keeps its own voice clinical-warm — rounded geometry, gentle gradients, research-paper composure around empathic technology.

## Colors

| Role | Value |
|------|-------|
| bg | `#FFF9F3` |
| surface | `#F1ECE6` |
| border | `#DDD8D3` |
| text | `#222222` |
| text_muted | `#757371` |
| primary | `#E6D1ED` |
| accent | `#FFFAF4` |
| link | `#FCE0EE` |
| secondary | `#FFDFB8` |
| button_bg | `#FFFAF4` |
| button_text | `#FFFFFF` |

**Using these colors**

- **Action color** `#FFFAF4` — the single interactive color; it appears only on things you click or must notice (buttons, key highlights), never on large fills or backgrounds.
- `accent`, `button_bg` are all `#FFFAF4` — one role, not several (your action color).
- **accent** `#FFFAF4` — THE accent / action color — interactive & must-notice only (buttons, links, focus, one key highlight); never large fills or backgrounds. Scarcity is what makes it read as designed.
- **primary** `#E6D1ED` — a neutral UI color (chips, tags, icon fills, chrome), not the action color (action = #FFFAF4).
- **link** `#FCE0EE` — fails contrast on the background (~1.2:1) — this is a dark UI color, NOT a readable link; use the text or action color for links (verify against the reference).
- **secondary** `#FFDFB8` — optional secondary accent — LOW decode confidence; use rarely (a status color or a single decorative moment) or omit it entirely. Prefer one accent unless the reference clearly shows two.

## Typography

- Heading: **Fellix** _(free fallback: Newsreader)_
- Body: **Fellix** _(free fallback: Newsreader)_
- h1: 48px
- h2: 30px
- body: 16px

> **Fonts —** Fellix may be proprietary — safe free fallback: Newsreader (Google Fonts).

## Spacing
- base unit: 4px
- scale: 2px, 4px, 6px, 8px, 12px, 16px, 24px, 32px

## Radius
- base: 0px
- button: 9999px

## Primary button
- bg `#FFFAF4` · text `#FFFFFF` · radius 9999px

## How to apply
Paste the Tailwind `@theme` (or CSS variables) as your base, then build each
section to its spec — verify every color, radius, and font against these tokens.

Export: Tailwind v4 (@theme)

@theme {
  /* action color #FFFAF4 — the one interactive color; buttons/links/emphasis only, never large fills. */
  --color-bg: #FFF9F3;
  --color-surface: #F1ECE6;
  --color-border: #DDD8D3;
  --color-text: #222222;
  --color-text-muted: #757371;
  --color-primary: #E6D1ED;  /* a neutral UI color (chips, tags, icon fills, chrome), not the action color (action = #FFFAF4). */
  --color-accent: #FFFAF4;  /* THE accent / action color — interactive & must-notice only (buttons, links, focus, one key highlight); never large fills or backgrounds. Scarcity is what makes it read as designed. */
  --color-link: #FCE0EE;  /* fails contrast on the background (~1.2:1) — this is a dark UI color, NOT a readable link; use the text or action color for links (verify against the reference). */
  --color-secondary: #FFDFB8;  /* optional secondary accent — LOW decode confidence; use rarely (a status color or a single decorative moment) or omit it entirely. Prefer one accent unless the reference clearly shows two. */
  --color-button-bg: #FFFAF4;  /* primary-button fill — the main call-to-action color. */
  --color-button-text: #FFFFFF;
  /* fonts: Fellix may be proprietary — safe free fallback: Newsreader (Google Fonts). */
  --font-heading: "Fellix", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "Fellix", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --text-h1: 48px;
  --text-h2: 30px;
  --text-body: 16px;
  --radius-base: 0px;
  --radius-button: 9999px;
  --spacing-1: 2px;
  --spacing-2: 4px;
  --spacing-3: 6px;
  --spacing-4: 8px;
  --spacing-5: 12px;
  --spacing-6: 16px;
  --spacing-7: 24px;
  --spacing-8: 32px;
}

Export: CSS variables

:root {
  /* action color #FFFAF4 — the one interactive color; buttons/links/emphasis only, never large fills. */
  --bg: #FFF9F3;
  --surface: #F1ECE6;
  --border: #DDD8D3;
  --text: #222222;
  --text-muted: #757371;
  --primary: #E6D1ED;  /* a neutral UI color (chips, tags, icon fills, chrome), not the action color (action = #FFFAF4). */
  --accent: #FFFAF4;  /* THE accent / action color — interactive & must-notice only (buttons, links, focus, one key highlight); never large fills or backgrounds. Scarcity is what makes it read as designed. */
  --link: #FCE0EE;  /* fails contrast on the background (~1.2:1) — this is a dark UI color, NOT a readable link; use the text or action color for links (verify against the reference). */
  --secondary: #FFDFB8;  /* optional secondary accent — LOW decode confidence; use rarely (a status color or a single decorative moment) or omit it entirely. Prefer one accent unless the reference clearly shows two. */
  --button-bg: #FFFAF4;  /* primary-button fill — the main call-to-action color. */
  --button-text: #FFFFFF;
  --font-heading: "Fellix", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "Fellix", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --radius: 0px;
  --radius-button: 9999px;
}
/* fonts: Fellix may be proprietary — safe free fallback: Newsreader (Google Fonts). */