Vaporwave is a microgenre of electronic music, a visual art style, and an Internet meme that emerged in the early 2010s, and became well-known in 2015. It is defined partly by its slowed-down, chopped and screwed samples of smooth jazz, 1970s elevator music, R&B, and lounge music from the 1980s and 1990s, similar to synthwave. The surrounding subculture is sometimes associated with an ambiguous or satirical take on consumer capitalism and pop culture, and tends to be characterized by a nostalgic or surrealist engagement with the popular entertainment, technology and advertising of previous decades. Visually, it incorporates early Internet imagery, late 1990s web design, glitch art, anime, stylized Ancient Greek or Roman sculptures, 3D-rendered objects, and cyberpunk tropes in its cover artwork and music videos.

Blue is one of the three primary colours in the RYB colour model, as well as in the RGB (additive) colour model. It lies between violet and cyan on the spectrum of visible light. The term blue generally describes colours perceived by humans observing light with a dominant wavelength that's between approximately 450 and 495 nanometres. Most blues contain a slight mixture of other colours; azure contains some green, while ultramarine contains some violet. The clear daytime sky and the deep sea appear blue because of an optical effect known as Rayleigh scattering. An optical effect called the Tyndall effect explains blue eyes. Distant objects appear more blue because of another optical effect called aerial perspective.