Design system

Brand guidelines

The living design system. Every swatch below reads the same token the site and the app render with, so this page cannot drift from what ships.

Downloads

All of the brand material, ready to download. If you are putting the ETH Cali mark on a poster, a talk or a sponsorship, take it from here rather than from a screenshot.

Logos

The glyph

The double diamond on its own, no lettering. This is the answer when the lockup cannot reach 32px — a favicon, an avatar, the nav bar of this site.

Horizontal lockup — on dark

The primary lockup, reversed. It is what this site uses in the header, the footer and its share cards, and what goes on any dark ground.

Horizontal lockup — on light

The primary lockup. Nav bars, headers and footers on a white ground. The compact version carries less air around the glyph.

Simplified lockup

Without the filigree: just the octahedron and the arc. For small print, embroidery and screen printing, where the fine line of the glyph fills in and becomes a smudge.

Social and sharing

Profile picture

Square, 1280 × 1280. For the avatar on any network — almost all of them crop to a circle, and the glyph stays centred.

Collection art

2000 × 2000, the size OpenSea asks for as a collection cover.

How to use it

The mark is a double diamond drawn in one continuous ultramarine line — the Ethereum octahedron rebuilt as filigree ironwork. Four rules protect it.

Clear space

X = the height of the diamond, on all four sides. Nothing comes inside that margin.

Minimum size

32px tall on screen, 10mm in print. Below that use the glyph on its own, never a shrunken lockup.

The line colour

Ultramarine #2B23EF or white. Nothing else — it is the only chromatic colour in the brand, sampled from the mark.

Never

  • Recolour the line
  • Stretch, condense, rotate or arc it
  • Place it on a busy photo or a gradient
  • Add glow, bevel or shadow

Brand

eth-blue

eth-blue-lift

eth-blue-deep

eth-blue-text

Links and data on dark

Surfaces

surface-void

surface-slab

surface-inset

surface-ridge

Signals

Never decorative. Green means something succeeded on chain — if a thing is merely pleasant, it is a brand colour, not a signal.

signal-confirmed

signal-pending

signal-reverted

Text

content-primaryThe quick brown fox jumps over the lazy dog

content-secondaryThe quick brown fox jumps over the lazy dog

content-mutedThe quick brown fox jumps over the lazy dog

content-faintThe quick brown fox jumps over the lazy dog

Type

Sarun Pro for anything a human wrote, JetBrains Mono for anything a chain produced: addresses, hashes, amounts, dates.

Sarun Pro Black 900

Sarun Pro Bold 700

Sarun Pro Medium 500

Sarun Pro Regular 400

JetBrains Mono · 0xB6BDe4fB…6da64

Sarun Pro has no 600. It steps Medium 500 to Bold 700, so font-semibold is mapped to 700 rather than synthesised.

Sarun Pro — web

The five weights this site loads, in WOFF2.

Sarun Pro is a commercial typeface licensed from its foundry. It is published here for ETH Cali work and that of its partner communities; for anything else, licence it yourself. JetBrains Mono is free and Apache 2.0 licensed. We do not redistribute it — it loads from Google Fonts.