Typography and fonts

Typography expresses clarity, authority and commercial confidence across every K3 communication.

The K3 type system balances authority and warmth – pairing Source Serif 4 with Plus Jakarta Sans to create clarity, contrast and rhythm.

Brand typeface

Source Serif 4

Primary serif for headlines, page titles, hero statements, pull quotes and high-impact authority statements.

Plus Jakarta Sans

A clear, confident, modern, and quietly distinctive sans serif typeface for sub-headings, straplines, supporting statements, body copy, UI and navigation.

Operational typeface

Aptos

Aptos is used exclusively for Microsoft Word templates and email signatures.

Aptos must never be used in brand marketing, digital campaigns, presentations or web environments. All marketing and brand communications must use the primary brand typefaces without exception.

Identity typeface

K3 Signal Display

K3 Signal Display is a bespoke, proprietary typeface used exclusively for K3 logo marks and brand identifiers, ensuring every K3 brand expression is immediately recognisable as part of the Group.