Bitcoin (BTC) is a decentralized digital currency created in 2009 by the pseudonymous developer Satoshi Nakamoto. Its visual identity, a white double-striped “B” on an orange circle, has become one of the most widely recognized symbols in the cryptocurrency space, though it was not the currency’s original mark.
Design and History
The first Bitcoin logo was created by Satoshi Nakamoto shortly after the software’s inception. It depicted a gold coin with the initials “BC” inscribed on it, a nod to the concept of Bitcoin as “digital gold.”[1]
On February 24, 2010, Nakamoto introduced a revised logo on the Bitcointalk forum. The gold coin remained, but the “BC” was replaced with a single “B” featuring two vertical strokes that extended above and below the letter, similar to currency symbols like the dollar sign.[1][2]
In November 2010, a pseudonymous Bitcointalk forum user named “bitboy” shared a new design based on Nakamoto’s “B” symbol. Bitboy rendered the letter in white, placed it on a flat, bright orange circle, and tilted it clockwise. The design was released into the public domain, allowing anyone to use it freely.[1][3] The community response was overwhelmingly positive, with one user calling it “the best Bitcoin logo I’ve ever seen,” and the design became Bitcoin’s de facto branding.[1][2]
In September 2017, software developer Phil Wilson published an article on Medium identifying himself as one of three designers responsible for the Bitcoin logo, and he detailed the design’s construction and symbolism.[4]
Meaning and Symbolism
Wilson documented several layers of mathematical and symbolic meaning in the logo’s construction. The “B” is rotated approximately 13.88 degrees clockwise, which rounds to 14 degrees in drawing software. Wilson explained that this angle was derived by adding an infinite series of values (12.5 + 1.25 + 0.125 + …), and that it represents “the blockchain progressing into the future forever.”[1]
The two vertical strokes on the “B” were inspired by the dollar sign. Wilson stated, “I wanted the symbol to represent the current global currency standard, the US dollar, which was replaced by Bitcoin.” The strokes do not cut through the letter, creating the impression that Bitcoin has “stamped” the dollar into the ground.[4][1]
The orange background was chosen for practical reasons. Wilson wanted a color that could be reproduced on both websites and print media, and he defined it using CMYK values of 0, 50, 100, 0, which are easy to remember and replicate in printing.[4] The circle itself was selected because a coin shape makes sense for a currency, and because a circle is “warm and friendly” and “continuous, endless, forever, just like Bitcoin.”[1]
Wilson also noted that the orange circle is scaled to 525 percent to achieve its precise diameter, a figure derived from 12.5 multiplied by 42, a reference to The Hitchhiker’s Guide to the Galaxy, in which 42 is “the answer to the ultimate question of life, the universe, and everything.”[1][4]
Typography and Design
The “B” in the Bitcoin logo is set in the Trebuchet font. Wilson said he chose the typeface because he liked the word and its association with the trebuchet catapult from the video game “Age of Empires.”[1][2]
Wilson also documented that the number eight appears throughout the logo’s geometry, referencing the fact that in leetspeak, eight resembles a “B,” which stands for “block.” Many of the circles used to construct the “B” contain the number eight, and other shapes in the design have dimensions of 12.5, or one-eighth of 100.[1]
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