MozaikaDesign system

Polar — Design System

dark · modern · medium · tailwind · confidence 90% · deep decode

Polar does payments infrastructure as gallery minimalism: PP Neue Montreal at 96px/400 in white on near-black, 64px stat numerals, zero-radius surfaces, and line-art diagrams of billing primitives. The monochrome austerity is the pitch — open-source Merchant of Record tooling that looks like it was designed by the same hand that ships the API.

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/polar.

Tokens

Polar's decoded design system: background #090909, text #FFFFFF, accent #FFFFFF, link #FFFFFF, primary #FFFFFF; type scale h1 96px / h2 48px / body 14px; 8px spacing base; 0px base radius. The single interactive/action color is #FFFFFF — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

RoleValue
bg#090909
surface#171717
border#2D2D2D
text#FFFFFF
text_muted#A1A1A1
primary#FFFFFF
accent#FFFFFF
link#FFFFFF
button_bg#FFFFFF
button_text#000000

Using these colors

Typography

Spacing

Radii

Motion

Micro-interactions run at 200ms (dominant) with cubic-bezier(0.4, 0, 0.2, 1).

Native design tokens

TokenValue
--x1k74rgp#fff
--xgt7lby#808189
--x1p9so9j#71727a
--x564kre#36363a
--x11lhxkvlab(66.9756% -58.27 19.5419)
--x1cfl4pqlab(55.4814% 75.0732 48.8528)
--x16r3synlab(72.7183% 31.8672 97.9407)
--xyhsvorlab(48.295% 38.3129 -81.9673)
--xi8e30c#090909
--x1511kce#101011

…and 110 more measured on the page.

Layout (measured)

Overlay recipe (measured)

dialog panel: #101011 · radius 7.6px

Responsive (measured)

Per-section tokens (11)

Export: DESIGN.md

# Polar — Design System

> dark, modern, medium, tailwind — deep decode (measured live)

Polar does payments infrastructure as gallery minimalism: PP Neue Montreal at 96px/400 in white on near-black, 64px stat numerals, zero-radius surfaces, and line-art diagrams of billing primitives. The monochrome austerity is the pitch — open-source Merchant of Record tooling that looks like it was designed by the same hand that ships the API.

## Colors

| Role | Value |
|------|-------|
| bg | `#090909` |
| surface | `#171717` |
| border | `#2D2D2D` |
| text | `#FFFFFF` |
| text_muted | `#A1A1A1` |
| primary | `#FFFFFF` |
| accent | `#FFFFFF` |
| link | `#FFFFFF` |
| button_bg | `#FFFFFF` |
| button_text | `#000000` |

**Using these colors**

- **Action color** `#FFFFFF` — 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`, `link`, `button_bg` are all `#FFFFFF` — one role, not several (your action color).
- **accent** `#FFFFFF` — 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.
- **Page coverage** (full-page screenshot pixels): `#090909` 96.3% · `#909090` 3.7%

## Typography

- Heading: **PP Neue Montreal** _(free fallback: Space Grotesk)_
- Body: **Inter**
- Mono: **GeistMono**

| Role | Size / weight · line-height · tracking |
|------|------------------------------------------|
| hero | 96px / 400 · lh 96px |
| h2 | 48px / 500 · lh 60px |
| h3 | 30px / 450 · lh 36px · tracking 0.24px |
| body | 20px / 450 · lh 28px · tracking 0.24px |
| small | 16px / 500 · lh 24px · tracking 0.24px |

- Weight ladder: 400 · 450 · 500 · 550 — use these exact measured weights, not the 400/600 defaults.

> **Fonts —** PP Neue Montreal is proprietary — closest free match: Space Grotesk (Google). Load Space Grotesk; keep PP Neue Montreal first so licensed users still get it. Inter — free, on Google.

## Spacing
- base unit: 8px (inferred from the measured scale)
- measured scale: 4px, 8px, 12px, 16px, 20px, 24px, 32px, 48px, 64px, 96px — snap all gaps/padding to these

## Radius
- base: 0px
- button: 9999px
- card: 8px
- pill: 9999px

## Buttons

| Button | Fill / text | Border | Radius | Padding | Font | Shadow |
|--------|-------------|--------|--------|---------|------|--------|
| primary | `#FFFFFF` / `#000000` | none | 3.35544e+07px | 12px 20px 12px 20px | 550 14px / 0.14px | none |
| secondary | `#1D1E20` / `#FFFFFF` | none | 9999px | — | — | none |

**States (measured, not guessed)**

- transition: `opacity 0.1s cubic-bezier(0.4, 0, 0.2, 1)`

## Motion
- durations: 200ms (dominant) · 150ms · 100ms
- easings: `cubic-bezier(0.4, 0, 0.2, 1)` (dominant)
- animated properties: fill, color, background-color, border-color

Micro-interactions use the dominant duration + easing; nothing on the page animates slower than the longest duration above — don't invent springier motion.

## Their own tokens (verbatim from :root)

| Token | Value |
|-------|-------|
| `--x1k74rgp` | `#fff` |
| `--xgt7lby` | `#808189` |
| `--x1p9so9j` | `#71727a` |
| `--x564kre` | `#36363a` |
| `--x11lhxkv` | `lab(66.9756% -58.27 19.5419)` |
| `--x1cfl4pq` | `lab(55.4814% 75.0732 48.8528)` |
| `--x16r3syn` | `lab(72.7183% 31.8672 97.9407)` |
| `--xyhsvor` | `lab(48.295% 38.3129 -81.9673)` |
| `--xi8e30c` | `#090909` |
| `--x1511kce` | `#101011` |
| `--x1dkijzr` | `#171719` |
| `--xztuibo` | `#fff` |

_…and 108 more measured on the page._

Prefer these names when extending their system — it's the brand's actual vocabulary.

## Layout (measured)
- container max 1280px

## Motion choreography (measured)
- overlay dialog (auto-opened): panel #101011 · r 7.6px · border 1px solid rgb(32, 32, 34) · shadow 
  - exit: transform+opacity from none,1 · 150ms linear

Rebuild the timeline, not just the durations — order, delays and staggers above are the choreography.

## Responsive (measured)
- breakpoints: 640px · 768px · 1024px · 1280px · 1536px
- mobile (390px): hero 60px · body 16px · nav: inline

## 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.
Hover/focus states, shadows and motion timings above are measured from the live page — match them exactly, don't re-guess them.

---

> **Decoded with Mozaika** — measured live, not guessed. Full decoded design system + one-command install: mozaika.design/ds/polar

Export: Tailwind v4 (@theme)

@theme {
  /* action color #FFFFFF — the one interactive color; buttons/links/emphasis only, never large fills. */
  --color-bg: #090909;
  --color-surface: #171717;
  --color-border: #2D2D2D;
  --color-text: #FFFFFF;
  --color-text-muted: #A1A1A1;
  --color-primary: #FFFFFF;  /* ≈ the text color — a foreground/text color, not an action color (action = #FFFFFF). */
  --color-accent: #FFFFFF;  /* 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: #FFFFFF;  /* inline text links — shares the action color. */
  --color-button-bg: #FFFFFF;  /* primary-button fill — the main call-to-action color. */
  --color-button-text: #000000;
  /* fonts: PP Neue Montreal is proprietary — closest free match: Space Grotesk (Google). Load Space Grotesk; keep PP Neue Montreal first so licensed users still get it. Inter — free, on Google. */
  --font-heading: "PP Neue Montreal", "Space Grotesk", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "Inter", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: "GeistMono", ui-monospace, monospace;
  /* measured weights: 400, 450, 500, 550 — use these, not 400/600 */
  --text-hero: 96px; --font-weight-hero: 400; --leading-hero: 96px;
  --text-h2: 48px; --font-weight-h2: 500; --leading-h2: 60px;
  --text-h3: 30px; --font-weight-h3: 450; --leading-h3: 36px; --tracking-h3: 0.24px;
  --text-body: 20px; --font-weight-body: 450; --leading-body: 28px; --tracking-body: 0.24px;
  --text-small: 16px; --font-weight-small: 500; --leading-small: 24px; --tracking-small: 0.24px;
  --radius-base: 0px;
  --radius-button: 9999px;
  --radius-card: 8px;
  --radius-pill: 9999px;
  --ease-brand: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 100ms;  /* use: duration-[var(--duration-fast)] */
  --duration-base: 150ms;
  --duration-slow: 200ms;
  --spacing: 8px;  /* measured base — drives the p-*/gap-* scale. steps seen on the page: 4, 8, 12, 16, 20, 24, 32, 48, 64, 96px */
}

Export: CSS variables

:root {
  /* action color #FFFFFF — the one interactive color; buttons/links/emphasis only, never large fills. */
  --bg: #090909;
  --surface: #171717;
  --border: #2D2D2D;
  --text: #FFFFFF;
  --text-muted: #A1A1A1;
  --primary: #FFFFFF;  /* ≈ the text color — a foreground/text color, not an action color (action = #FFFFFF). */
  --accent: #FFFFFF;  /* 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: #FFFFFF;  /* inline text links — shares the action color. */
  --button-bg: #FFFFFF;  /* primary-button fill — the main call-to-action color. */
  --button-text: #000000;
  --font-heading: "PP Neue Montreal", "Space Grotesk", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "Inter", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: "GeistMono", ui-monospace, monospace;
  --text-hero: 96px; --weight-hero: 400; --leading-hero: 96px;
  --text-h2: 48px; --weight-h2: 500; --leading-h2: 60px;
  --text-h3: 30px; --weight-h3: 450; --leading-h3: 36px; --tracking-h3: 0.24px;
  --text-body: 20px; --weight-body: 450; --leading-body: 28px; --tracking-body: 0.24px;
  --text-small: 16px; --weight-small: 500; --leading-small: 24px; --tracking-small: 0.24px;
  --radius: 0px;
  --radius-button: 9999px;
  --radius-card: 8px;
  --radius-pill: 9999px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 100ms;
  --duration-base: 150ms;
  --duration-slow: 200ms;
}

/* their own tokens, verbatim from the site's :root */
:root {
  --x1k74rgp: #fff;
  --xgt7lby: #808189;
  --x1p9so9j: #71727a;
  --x564kre: #36363a;
  --x11lhxkv: lab(66.9756% -58.27 19.5419);
  --x1cfl4pq: lab(55.4814% 75.0732 48.8528);
  --x16r3syn: lab(72.7183% 31.8672 97.9407);
  --xyhsvor: lab(48.295% 38.3129 -81.9673);
  --xi8e30c: #090909;
  --x1511kce: #101011;
  --x1dkijzr: #171719;
  --xztuibo: #fff;
}
/* fonts: PP Neue Montreal is proprietary — closest free match: Space Grotesk (Google). Load Space Grotesk; keep PP Neue Montreal first so licensed users still get it. Inter — free, on Google. */