Cardano is a proof-of-stake blockchain platform launched in September 2017 by Charles Hoskinson, a co-founder of Ethereum. The project is named after Gerolamo Cardano (1501-1576), an Italian Renaissance mathematician credited with publishing the first systematic solutions to cubic and quartic equations and an early treatment of probability theory. The platform’s native token, ADA, is named after Ada Lovelace, widely regarded as the first computer programmer. [1]
Design and History
The Cardano logo consists of a starburst icon paired with a wordmark. The horizontal version, with the icon to the left of the “Cardano” wordmark, is designated as the primary version and should be used as the default. The icon may also be used as a standalone element. [2]
The starburst icon is a hypocycloid, a mathematical curve traced by a fixed point on a small circle rolling along the interior of a larger circle. The specific curve in the Cardano logo has multiple cusps, creating a pattern that resembles a stylized flower or starburst. [1] This geometric foundation is a direct reference to the project’s namesake: Gerolamo Cardano is credited with describing hypocycloids, also known as “Cardano Circles.” [3] The Cardano Foundation’s CEO Frederik Gregaard confirmed that the logo’s creation story is rooted in the hypocycloid geometry associated with Gerolamo Cardano. [4]
In early 2020, the Cardano Foundation and its ecosystem partners began a brand reappraisal exercise called “Project Renovare,” which means “renew” in Latin. The project enlisted the help of the design and creative agency McCann Dublin, along with community input from Cardano Ambassadors. The exercise led to a unified and renewed visual identity for Cardano and the Cardano Foundation, evolving the visual elements of the existing identity rather than performing a complete redesign. [5] The brand reappraisal, completed in July 2020, was nominated by Ireland’s Institute of Creative Advertising and Design (ICAD) for the best rebranding scheme award. [6]
Meaning and Symbolism
The hypocycloid curve in the Cardano logo is not an arbitrary graphic. It reflects the project’s identity as a blockchain built on peer-reviewed academic research and formal mathematical methods, rather than rapid iteration. The choice of a mathematically derived mark signals the project’s commitment to rigor and first-principles thinking. [1]
The logo’s multiple cusps create a visual rhythm that suggests interconnection and repetition, which is appropriate for a blockchain, a structure built from repeated, interconnected blocks. Each cusp can be read as a node in a network, with the smooth curves connecting them suggesting communication between participants in a consensus protocol. [1]
Typography and Design
The Cardano brand guidelines specify the typeface Chivo by Omnibus-Type, available via Google Fonts, with Arial as the fallback. The typeface is offered in Light (300), Regular (400), and Bold (700) weights. [2]
The official brand colors are defined as Blue (RGB 0 / 51 / 173, Pantone 286), Black (Pantone Process Black), White, and Paper (RGB 248 / 248 / 245). Secondary colors include Red (RGB 255 / 85 / 83, Pantone 178) and Green (RGB 59 / 121 / 130, Pantone 569). [2]
Usage guidelines require maintaining a clear space around the logo equal to the width of six dots from the starburst icon. The logo must not be stretched, rotated, or distorted, and may only be recolored within the specified brand colors. The wordmark cannot be used without the icon. [2]
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