— For the first time in years, Russia's Soyuz-2 launch vehicle will lift off with a new look, inspired by the rocket that put the first human into space.

GK Launch Services, the commercial launch division of Glavkosmos, a subsidiary of Russia's Roscosmos state space corporation, announced the new livery, which will debut with the Soyuz-2.1a booster set to fly with 38 satellites from 18 countries on Saturday (March 20). Update: The launch was postponed until March 22.

"It's the first time in decades that Soyuz-2 will feature the blue-white pattern instead of the standard gray-orange combination of color," GK Launch Services wrote on Twitter. "This color pattern was inspired by the Vostok LV [launch vehicle] prototype that sent Yuri Gagarin into space from Baikonur 60 years ago."

First introduced in 2004 by the Progress Rocket Space Center, the Soyuz-2 is the modern version of the Russian rocket used to launch crewed spacecraft and cargo vehicles to the International Space Station, as well as commercial and military satellites into Earth orbit. It is often paired with the Fregat-M upper stage, as it is for the upcoming rideshare mission.

Traditionally, the Soyuz-2a.1 has launched with a greenish gray appearance with white and orange highlights. Like the all-gray Vostok rocket that lifted off with cosmonaut Yuri Gagarin on April 12, 1961, on the world's first crewed spaceflight, the Soyuz-2 has appeared white at liftoff due to frost forming on the vehicle's skin (the result of the rocket's cryogenic liquid oxygen).

The new Soyuz-2 paint pattern mimics the Vostok launch appearance with a body painted all white with light and dark blue highlights.

The "corporate bright blue color is inherent in [the GK Launch Services] main logo, as well as used in the corporate identity of the State Corporation," Roscosmos said in a statement posted on its website. "The fairing covering the spacecraft will retain the 'standard' white color. Otherwise, the orange [paint] on the [rocket's body] will be replaced by blue, and the gray will be replaced with white. The color of the transition compartment will also change — instead of the traditional gray, it will also [be painted] blue."

The Soyuz-2a.1 launch on March 20 will fly from Site 31/6 at Russia's Baikonur Cosmodrome in Kazakhstan, near Site 1 where Gagarin lifted off aboard Vostok 60 years ago. Also referred to as "Gagarin's Start," Site 1 is currently undergoing upgrades to support the Soyuz-2 class of rockets.

The rocket will lift off with the CAS500-1 Earth observation satellite for the Korea Aerospace Research Institute (KARI), as well as smaller payloads for Russia, Japan, Saudi Arabia, the United Arab Emirates, Italy, the Netherlands, Germany, Canada, the United Kingdom, Thailand, Spain, Slovakia, Argentina, Israel, Brazil, Hungary and Tunisia.

The Vostok-inspired livery is expected to be used for other Soyuz-2 rockets flown under contract with GK Launch Services this year, according to Roscosmos.