Musically, it is a mid-tempo pop ballad which begins with a soft piano introduction and builds into an upbeat synth track, while lyrically, it is about encouraging a downcast friend to come out and have some fun.

Its accompanying music video features a man and a woman who have had bad fortune in their relationships meeting at a party in a night club and their luck turning around.

[5][6] Official Charts Company writer Justin Myers wrote that the song's introduction was reminiscent of the musical style of Coldplay, and also compared elements of it to "Collide" by Leona Lewis and Avicii (2011).

[8] On 20 July 2017, the group announced the song as the third single from the album, and it was released in the form of two remixes – a radio edit and a club mix – produced by Adam Turner on 4 August.

Matt Bagwell of The Huffington Post awarded the song five out of five stars in his track-by-track review of Tears on the Dancefloor in April 2017; he wrote that the piano introduction is reminiscent of the musical style on English singer Adele's third studio album 25 (2015), but noted that it soon evolves into "classic Steps.

[6] AXS contributor Lucas Villa praised the track, writing that the song "shines as a true Steps classic with feel good lyrics that could light up the darkest room.

"[8] In his review for the music video, Villa also wrote that the song is a "glowing ode to celebrating away the bad times" and the "perfect pop potion for fighting the blues.

"[13] The treatment for the accompanying music video for "Neon Blue" was written by band member Lee Latchford-Evans, his girlfriend Kerry-Lucy Taylor and Steps' stylist Frank Strachan.