Acid Design is a graphic design style characterized by psychedelic visuals, distorted typography, and futuristic textures. Its origins are rooted in the flyer art of the 1990s Acid House and rave movements. The style experienced a significant revival in the mid-2010s, primarily on social media platforms like Instagram, where this new wave became widely known as Acidgrafix . It is commonly found in electronic music cover art, event flyers, and branding for fashion and music labels. The aesthetic combines a dark, often black, background with highly saturated neon colors, complex compositions, and motifs drawn from technology and counter-culture.

The visual language of Acid Design first developed in the 1990s alongside the rise of acid house music and the broader European rave scene. Flyers and posters from this era used psychedelic imagery, futuristic fonts, and symbols like the smiley face to capture the energy of the music and culture. This initial wave established the core palette of dark backgrounds contrasted with bright, fluorescent colors and the use of technological and abstract motifs.

Beginning in the mid-2010s, the style saw a major resurgence, gaining new life and a new name, Acidgrafix, through online design communities, particularly on Instagram. This revival was propelled by a new generation of graphic designers who reinterpreted the 90s aesthetic for a contemporary audience. Key figures in this movement include David Rudnick, known for his work with musical artists (collaborators include Katy Perry, Oneohtrix Point Never, Black Midi and Nicolás Jaar); Jonathan Castro, who designed the Boiler Room logo; and the Japanese designer GUCCIMAZE. This modern iteration retains the core elements of its predecessor but often incorporates a more ironic, darkly humorous, or cynical worldview, reflecting contemporary anxieties and digital culture.

Acid Design is defined by its use of "colorful black," a technique where a dark or black base is used to make highly saturated, fluorescent colors appear more vibrant. Compositions are typically complex and dense, often appearing random or chaotic. This approach utilizes overlapping and fragmented geometric patterns, creating a sense of dynamic disorder and visual flow that fills the entire space, a principle sometimes referred to as horror vacui (fear of empty space).

Typography is a central element of the aesthetic. Fonts are often experimental, featuring geometric, jagged, or distorted letterforms. A signature of the modern Acidgrafix revival is the use of liquid metal, chrome, and iridescent textures applied to text, giving it a futuristic and tactile quality. This is complemented by other futuristic materials and effects, such as wireframe models, lasers, and renderings of glass and plastic.

The aesthetic employs a range of recurring motifs that blend retro and futuristic themes. These include psychedelic and Op-Art patterns like checkerboards and warped stripes, technological symbols, world globes, and iconography from 90s rave culture like the smiley face. The overall mood is often anti-utopian or dystopian, using visual dissonance and confusion to express subjective emotions and a sense of unique, individualized identity.