SYLOS was formed in 2017. They created their YouTube channel on January 19 and their social media accounts on January 24-25. After which, a poll was created to allow fans to decide on the least hated logo of the six that SYLOS commissioned on Fiverr. The selected logo was then be used as a logo placeholder.
On August 3, 2017, SYLOS announced their official logo in preparation for the release of their debut extended play Gravity/Open, which was released a day later.