ParclDesign system

Colophon / design language

A language of parcels.

One geometric idea — the parcel — used for identity, navigation, diagrams, section rhythm and the connection between a real property and its evidence.

Type — HK Grotesk + Instrument SerifGrid — 12 columnModes — light and dark

01 — The mark

A boundary, a corner and a whole.

The Parcl mark is three parcels sharing edges: one filled, two drawn. Filled means recorded. Drawn means known but not yet committed. The copper full stop is the anchor.

Primary Reverse 16px favicon parcl.Wordmark

02 — Colour

Midnight, ivory, mineral.

Ink

#080D0B

Primary dark surface, hero plates, footer

Paper

#F6F3EC

Primary light surface

Stone

#E4DFD2

Secondary light surface

Copper

#9A5B33

Accent, active state, commitment

Sage

#7D9D8B

Quiet accent, positive status

Ivory text

#EDEAE2

Text on ink

No gradients beyond a single protective scrim. No neon. Copper is reserved for the moment something is committed, active or verified — never for decoration.

03

Typography

Oversized, tightly set.

Display · HK Grotesk ExtraBold

Real property.

clamp(2.85rem, 7.1vw, 7rem) · tracking −0.045em · leading 0.94

Heading 2 · with editorial serif

Proof for generations.

Instrument Serif italic is used only for the emotional half of a statement

Body · HK Grotesk Regular

Real estate is measured in decades and generations. Parcl connects properties, people, transactions and trusted records — building infrastructure on a Bitcoin-first foundation.

17px · 1.62 · 66ch measure

Annotation · monospace

PLATE 01 — PROPERTY · AGREEMENT · EVIDENCE

10.5px · tracking 0.2em · uppercase

04

Components

Square corners. Sharp intent.

Buttons

One primary action per view. Uppercase, 11px, tracking 0.17em. Arrow translates 4px on hover.

Status & data

Archived — not live Verified Concept

Status is never implied by color alone: every chip carries a label. Copper marks commitment; sage marks a healthy state.

CARD 01

Hairline surfaces

Cards sit in a 1px grid so borders are shared, never doubled. Corner ticks appear on hover and focus-within, not on load.

CARD 02

Measured motion

Reveals translate 20px over 900ms with a single easing curve. Everything is disabled under prefers-reduced-motion.

CARD 03

Honest diagrams

Every plate is labeled conceptual where it describes intended behavior rather than a shipped interface.

05

The plates

Drawn from the same idea.

Plate 01 — Parcel fieldHome
Plate 02 — Block studyCivic
Plate 03 — StrataTechnology
Plate 04 — Street elevationStory
Plate 05 — Chain of custodyPlatform

Accessibility

Semantic landmarks, skip link, visible focus, keyboard-operable tabs and accordions, 4.5:1 minimum body contrast in both modes, and no information conveyed by color alone.

Performance

One stylesheet, one small script, no framework, no tracking, no web fonts beyond two families. Artwork is inline SVG generated at build time — no image payload at all.

06 — Implementation

A static site you can read.

Six pages, one CSS file, one JS file, no build step required to serve it. Every diagram is generated deterministically from a seed, so plates are reproducible and versionable.