MozaikaDesign system

Heptabase — Design System

light · modern · medium · tailwind · confidence 90%

Heptabase keeps deep learning-work quiet: Instrument Sans at 36-48px/500 in soft charcoal #2E2E2E on paper #F7F7F7, Inter at 16px, and 8px-radius ghost buttons. Whiteboard canvases with hand-placed cards are the real protagonist — a thinking tool whose marketing page has the visual noise floor of a library reading room.

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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/heptabase.

Tokens

Heptabase's decoded design system: background #F7F7F7, text #2E2E2E, accent #FF5F57, link #FEBC2E, primary #FF5F57; type scale h1 18px / h2 36px / body 18px; 4px spacing base; 6px base radius. The single interactive/action color is #2E2E2E — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

RoleValue
bg#F7F7F7
surface#EAEAEA
border#D8D8D8
text#2E2E2E
text_muted#7A7A7A
primary#FF5F57
accent#FF5F57
link#FEBC2E
secondary#207DFF
button_bg#2E2E2E
button_text#FFFFFF

Using these colors

Typography

Spacing

Radii

Shadow

rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(15, 15, 15, 0.1) 0px 0px 0px 1px, rgba(15, 15, 15, 0.1) 0px 2px 4px 0px

Per-section tokens (11)

Export: DESIGN.md

# Heptabase — Design System

> light, modern, medium, tailwind

Heptabase keeps deep learning-work quiet: Instrument Sans at 36-48px/500 in soft charcoal #2E2E2E on paper #F7F7F7, Inter at 16px, and 8px-radius ghost buttons. Whiteboard canvases with hand-placed cards are the real protagonist — a thinking tool whose marketing page has the visual noise floor of a library reading room.

## Colors

| Role | Value |
|------|-------|
| bg | `#F7F7F7` |
| surface | `#EAEAEA` |
| border | `#D8D8D8` |
| text | `#2E2E2E` |
| text_muted | `#7A7A7A` |
| primary | `#FF5F57` |
| accent | `#FF5F57` |
| link | `#FEBC2E` |
| secondary | `#207DFF` |
| button_bg | `#2E2E2E` |
| button_text | `#FFFFFF` |

**Using these colors**

- **Action color** `#2E2E2E` — the single interactive color; it appears only on things you click or must notice (buttons, key highlights), never on large fills or backgrounds.
- `primary`, `accent` are all `#FF5F57` — one role, not several.
- **accent** `#FF5F57` — accent for emphasis — keep it rare on the page.
- **link** `#FEBC2E` — fails contrast on the background (~1.6:1) — this is a dark UI color, NOT a readable link; use the text or action color for links (verify against the reference).
- **secondary** `#207DFF` — 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: **Inter**
- Body: **Inter**
- h1: 18px
- h2: 36px
- body: 18px

> **Fonts —** Inter — free, on Google.

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

## Radius
- base: 6px
- button: 10px

## Primary button
- bg `#2E2E2E` · text `#FFFFFF` · radius 10px

## 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 #2E2E2E — the one interactive color; buttons/links/emphasis only, never large fills. */
  --color-bg: #F7F7F7;
  --color-surface: #EAEAEA;
  --color-border: #D8D8D8;
  --color-text: #2E2E2E;
  --color-text-muted: #7A7A7A;
  --color-primary: #FF5F57;  /* a brand color — but the call-to-action uses #2E2E2E, not this. */
  --color-accent: #FF5F57;  /* accent for emphasis — keep it rare on the page. */
  --color-link: #FEBC2E;  /* fails contrast on the background (~1.6:1) — this is a dark UI color, NOT a readable link; use the text or action color for links (verify against the reference). */
  --color-secondary: #207DFF;  /* 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: #2E2E2E;  /* primary-button fill — the main call-to-action color. */
  --color-button-text: #FFFFFF;
  /* fonts: Inter — free, on Google. */
  --font-heading: "Inter", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "Inter", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --text-h1: 18px;
  --text-h2: 36px;
  --text-body: 18px;
  --radius-base: 6px;
  --radius-button: 10px;
  --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 #2E2E2E — the one interactive color; buttons/links/emphasis only, never large fills. */
  --bg: #F7F7F7;
  --surface: #EAEAEA;
  --border: #D8D8D8;
  --text: #2E2E2E;
  --text-muted: #7A7A7A;
  --primary: #FF5F57;  /* a brand color — but the call-to-action uses #2E2E2E, not this. */
  --accent: #FF5F57;  /* accent for emphasis — keep it rare on the page. */
  --link: #FEBC2E;  /* fails contrast on the background (~1.6:1) — this is a dark UI color, NOT a readable link; use the text or action color for links (verify against the reference). */
  --secondary: #207DFF;  /* 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: #2E2E2E;  /* primary-button fill — the main call-to-action color. */
  --button-text: #FFFFFF;
  --font-heading: "Inter", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "Inter", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --radius: 6px;
  --radius-button: 10px;
}
/* fonts: Inter — free, on Google. */