The corporate mark is exactly what it says: a blue box.

American Express’s primary mark is the ‘Blue Box’ — ‘AMERICAN EXPRESS’ in white inside a solid blue square, introduced in December 1974 by branding firm Lippincott & Margulies, replacing an earlier green box. Its lettering is a modified Handel Gothic (distinct from the brand’s text faces). The box gained a radial-gradient blue around 2000 and was refreshed by Pentagram in 2018 into today’s flatter, cooler version. Because that box-with-wordmark is a registered mark, our homage is an open blue frame with no lettering inside.

The face on the card is a symbol, not a person.

The helmeted centurion (often loosely called a ‘gladiator’) has appeared on Amex cards and travellers cheques since 1958, a Roman-soldier profile symbolising trust and security — a generic classical figure, not a specific historical person. It later named the invitation-only Centurion ‘Black Card’ (1999), a real product Amex launched partly in response to an urban legend about a secret, limitless card. The centurion is a protected mark, so we describe it rather than reproduce it.

American Express is older than almost every brand it sits beside.

American Express was founded on 18 March 1850 in Buffalo, New York, as an express mail and freight business — by Henry Wells, William Fargo and John Warren Butterfield. Yes: Wells and Fargo are the same pair who founded Wells Fargo two years later — a fact too neat to be a myth, but true (Butterfield is the forgotten third founder). Amex introduced the travellers cheque in 1891 and its first charge card in 1958 ($6 a year, paper at first). The blue-and-trust identity is the through-line across all 175 years.

A clean sans for clarity, a serif for warmth.

Amex’s design system pairs Benton Sans (the primary sans, across digital and UI) with Guardian, a serif superfamily by Commercial Type used for editorial warmth, plus Helvetica Neue as a system fallback. The logo lettering is separate — the modified Handel Gothic of the Blue Box. Guardian is a modern (post-2018) addition, not a historical Amex face. The specimen below is set in a clean sans in that trustworthy, corporate spirit.

A bright brand blue over a deep navy. Click a swatch to copy the hex.

Per Amex’s own visual-identity guidelines, the primary is Bright Blue #006FCF (PMS 285 C), with a Deep Blue #00175A and neutral grays. One discrepancy to note: brand-colour databases widely list the primary as #016FD0 — a near-identical web variant. Use #006FCF as the canonical, Pantone-matched value and treat #016FD0 as the common alternate. Copy the working values below.

American Express spends its whole identity making one abstract idea — security — feel visible and premium.

Financial brands sell something customers can never see: the confidence that their money and their name are safe. Amex solves that with blue, the most institutionally trusted colour in the palette, deployed with unusual conviction. The Blue Box is deliberately plain — a solid square, white lettering, no ornament — because austerity reads as authority; a bank that needs decoration looks like it is compensating. The pairing of a Bright Blue #006FCF against a Deep Blue #00175A gives the system both a confident, modern face and a serious, almost naval depth beneath it. Even the centurion, a Roman soldier standing for vigilance, exists to make the promise of protection tangible on a piece of plastic.

What is striking is how little the core has changed across 175 years of reinvention — from express wagons to travellers cheques to the invitation-only Centurion ‘Black Card’. The green box gave way to the blue one in 1974, the box gained and later shed a gradient, and Pentagram flattened it again in 2018, yet the essential signal stayed fixed: a blue field, clean lettering, a classical guardian. That is the value of a disciplined equity — a brand can modernise its surface indefinitely as long as the promise underneath never wavers. Amex teaches that in categories built on trust, consistency is not conservatism; it is the product, and the blue box is simply that trust made portable.

Keep the blue-box idea and the bright-and-deep-blue system on hand — save it to a board.