Proton Logo
The Proton logo uses 1 primary color. Its dominant color is Pink OCD (#6D4AFF, closest Pantone 266 C). Proton operates in the Programming & Developer Software industry.
- Color family
- blue
- Industry
- Programming & Developer Software
- Brand popularity
- Top 2% of indexed brands
- Website
- proton.me
Design analysis
The Proton mark is a geometric combination mark where the symbol and logotype share a unified visual language. The symbol is a single continuous stroke forming a stylized "P" that simultaneously reads as a shield silhouette — the vertical stem anchors the form while the curved bowl wraps protectively, closing at the top to suggest enclosure without feeling heavy. This dual reading (letter + shield) is the core conceptual hook: privacy as identity. The logotype uses a custom geometric sans-serif with rounded terminals that echo the symbol's curves; letter spacing is open, counters generous, giving it a technical but approachable tone. At small sizes the symbol holds because its positive/negative balance is deliberate — the counter of the P remains open down to ~16px, and the shield outline doesn't fracture. In the crowded privacy/security sector where locks, keys, and abstract shields are clichés, Proton's mark avoids literalism; it doesn't depict a padlock, it *becomes* the protective form. The construction is grid-aligned (visible 45° and 90° angles), which ensures crisp rendering across dark/light modes and favicon sizes.
Logo colors, measured
Colors extracted from the logo image itself (background removed), with share of the mark each color covers.
Click a chip to copy its hex code.
The measured #6D4AFF is a saturated violet-purple that breaks the industry default of trust-blue and safety-green. Purple signals cryptography heritage (historically associated with cipher machines and military comms) while feeling modern, consumer-friendly, and distinct from Big Tech's blue monopolies. It performs well on both light and dark backgrounds without vibration, and the single-color application keeps reproduction costs flat across print, merch, and UI accents.
Variations & downloads
Color variants generated from the vector source — free to download for identification, editorial and research use.
Visually similar logos
Nearest neighbors in visual embedding space — marks that share shape and structure with the Proton logo, regardless of color or industry.
Brand web palette
Colors Proton uses across its website — the broader brand system around the logo.
About Proton
Proton Mail is a leading brand that is passionate about privacy and digital freedom. Founded in Switzerland in 2014 by a team of scientists from CERN, Proton Mail aims to create a better internet where privacy is the default. They believe that everyone should have control over their digital lives, without having to compromise their personal data to profit-oriented companies. Proton Mail offers a range of products and services designed to protect your privacy and ensure secure communication. Their flagship product is an encrypted email service that prioritizes privacy by default. They also provide a secure calendar and cloud storage solution that gives you control over your data. Proton Mail even offers an encrypted password manager to safeguard your online identity. As a privacy-focused brand, Proton Mail is committed to defending freedom through technology. They prioritize their community's interests over advertisers and third parties, ensuring that your trust is never compromised. With millions of global users and a dedication to privacy and freedom online, Proton Mail is reshaping the internet for the better. Join their community and experience a world where privacy is a priority
Questions about the Proton logo
Why does the Proton logo look like both a letter and a shield?
The symbol is intentionally ambiguous: a single stroke forms the letter P while its outer contour describes a shield shape, merging brand initial with the core promise of protection.
Has the logo changed since the ProtonMail rebrand to Proton?
The symbol and wordmark remained visually consistent when the company shortened its name in 2022; only the logotype text changed from "ProtonMail" to "Proton," preserving equity.
What color is the Proton logo?
The dominant color of the Proton logo is Pink OCD (hex #6D4AFF). The closest Pantone match is 266 C.
How many colors does the Proton logo have?
The Proton logo uses 1 primary color: #6D4AFF.
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The Proton logo is a trademark of its owner, shown here for identification and design research. Color data is measured from the public mark by LogoLabs; analysis is editorial commentary. No affiliation or endorsement is implied.