| "Sangenshoku" | ||||
|---|---|---|---|---|
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| Single by Yoasobi | ||||
| from the EP The Book 2 | ||||
| Language | Japanese | |||
| English title | "RGB" | |||
| Released | July 2, 2021 | |||
| Genre | J-pop | |||
| Length | 3:44 | |||
| Label | Sony Japan | |||
| Songwriter(s) | Ayase | |||
| Producer(s) | Ayase | |||
| Yoasobi singles chronology | ||||
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| Music video | ||||
| "Sangenshoku" on YouTube "RGB" on YouTube | ||||
"Sangenshoku" (三原色, lit. "three primary colors") is a song by Japanese duo Yoasobi, from their second EP, The Book 2 (2021). It was released as a single on July 2, 2021, through Sony Music Entertainment Japan. The song featured as a background music for mobile service Ahamo advertisement. Based on Yūichirō Komikado's short story RGB, the song depicts relationships between childhood friends that are still connected even though they live in different places.
Commercially, the song debuted atop Oricon Digital Singles Chart with 57,000 download units, number three on the Combined Singles Chart, and number four on Billboard Japan Hot 100. The song also charted in the top 40 of Billboard Global 200 and the top 20 of Global Excl. U.S. The English version, titled "RGB", was released on July 16, 2021, and included on the duo's first English-language EP E-Side (2021).