Upon release, Libra Scale received favorable reviews from most music critics. The album opened at number 9 on the US Billboard 200, selling 112,000 copies in its first week sales, becoming his fourth consecutive top-ten album in the United States following Year of the Gentleman in 2008. It currently holds a 73 out of 100 on Metacritic, which indicates "generally favorable reviews", based on fourteen reviews, and has attained three singles that have achieved moderate Billboard chart success.
According to Ne-Yo, the idea for the album emerged from three influences: his desire to do something different instead of a standard compilation; his interest in science fiction, comic books and Japanese animation; and inspiration from the works of Michael Jackson, particularly Thriller, Moonwalker, and Bad. Originally a short movie was to accompany the album, but such proved not to be viable given time and monetary constraints, so Ne-Yo chose to develop a series of six extended music videos instead. Nevertheless, the film concept continues to influence the work, as he has stated the songs on the album are inspired by the script of the film that he wrote. The album features a number of songs which follow the story of Jerome and Pretti Sinclair.
The album's title is a reference to Libra, Ne-Yo's astrological sign.
The album's concept explores a story questioning morality and both sides of the Libra Scale: the decision between money/power/fame versus love. The story follows three garbage men – Jerome, Clyde and Leroy – who are offered everything they have wanted in return for protecting the city against a forthcoming threat. However, there's a catch: they can never fall in love. When Jerome (Ne-Yo) falls for Pretti Sinclair (Galen Hooks) disaster ensues, and he has to choose between his love for her and the fame, power and money that he had been given, as he must choose between her life and his own.
"Beautiful Monster" was released as the lead single on June 8, 2010. It peaked at fifty-three on the US Billboard Hot 100 and sixty-one on the US Hot R&B/Hip-Hop Songs chart. It performed the best in the UK, where it became his third number-one hit. It also reached the top ten in Japan and Ireland, and achieved moderate success in other international markets. "Champagne Life" was released as the second North American single on July 20, 2010. It peaked at seventy-five on the Billboard Hot 100, eleven on the Hot R&B/Hip-Hop Songs chart, and due to gaining strong digital sales, reached the top forty in Japan. "One in a Million" was released as the third North American and second international single on September 7, 2010. It peaked at eighty-seven on the US Billboard Hot 100 and has reached a current peak at twenty-one on the US Hot R&B/Hip-Hop Songs chart. It also reached the top twenty in the UK and charted in Australia.
Upon its release, Libra Scale received generally favorable reviews from most music critics. At Metacritic, which assigns a normalized rating out of 100 to reviews from mainstream critics, the album received an average score of 73, based on 14 reviews, which indicates "generally favorable reviews". Jody Rosen of Rolling Stone awarded the album with four stars out of five, commenting that "the real concept here is: Michael Jackson tribute album. And a damn good one." Andy Kellman of Allmusic gave the album three and a half out of five stars, stating that "Ne-Yo remains a premier source of R&B that is both traditional and contemporary." Todd Martens of Los Angeles Times gave the album two and a half out of four stars, commenting that "Ultimately it's admirable that Ne-Yo felt the need to take listeners on a out-of-this-world ride, but he's at his best when sticking closer to home." Elysa Gardner of USA Today gave the album a score of three stars out of four and said, "This electro-savvy song cycle, involving a squad of superheroes and a love interest with a femme fatale alter ego, may not boast Ne-Yo's strongest hooks to date. But Libra Scales [sic] does confirm his affinity for balancing old-school romance with a youthful, fluid sensuality."