Hard-edge painting is painting in which abrupt transitions are found between color areas. Color areas often consist of one unvarying color. The Hard-edge painting style is related to Geometric abstraction, Op Art, Post-painterly Abstraction, and Color Field painting.

Geometric abstraction is a form of abstract art based on the use of geometric forms sometimes, though not always, placed in non-illusionistic space and combined into non-objective (non-representational) compositions. Although the genre was popularized by avant-garde artists in the early twentieth century, similar motifs have been used in art since ancient times.