HEDDLE.
Enter HEDDLE

Colophon

How this is made.

Heddle is a tool that ships with a printed manual1. This page lists what the manual is set in, what it's printed on, and the work it stands beside.

The name

A heddle is the part of a loom that lifts individual warp threads so the weft3 can pass between them. From Old English hefeld, to lift.

Heddle weaving diagramA heddle bar lifts a single warp thread (the ember-coloured morse spelling HEDDLE) above its four neighbouring warp threads, opening a shed; the weft passes through it.WARP

Typefaces

FamilyDesignerLicenseUse
Cal SansWORDMARK, for Cal.comOFLEverything but code: headlines, reading, interface. Its optical size follows the font size.
Paper MonoGuido Ferreyra, Javier Quintana Godoy and Vladyslav Moroz, for PaperOFLCode, IDs, paths, commands, with its coding ligatures and slashed zero on.

Both are self-hosted as variable woff2. Latin subset only; no external font requests2. Readers can change Cal Sans's letter shapes under Settings → Appearance.

Palette

Warm paper above, char below, ember as the bridge. The accent stays identical across light and dark. That's the whole point. Every hex below is read from the live token in the mode you're reading in; the token name is the thing to copy.

Paper — --paper
Vellum — --vellum
Ink — --ink
Graphite — --graphite
Mist — --mist
Ember — --ember
Ember deep — --ember-deep
Char — --char

References

  • Dieter Rams · Less, but better.
  • Edward Tufte · Information design as honest reasoning.
  • Field Notes · The discipline of a small format with a long memory.
  • Leica manuals · Documentation that respects the reader.
  • Are.na · The colophon as a public statement of care.

Made carefully.

Build of 2026-11-01 · Brand

  1. See Brand for the full vocabulary: wordmark, monogram, voice, social headers.
  2. Latin subset is adequate for the English-first product surface. Add latin-ext if international content needs symbols beyond U+00FF.
  3. Weft runs across the cloth; warp runs along its length. The heddle decides which warp threads rise so the weft passes above or below.