"Ten Triangles of Color" exemplifies Alexander Calder's exploration of geometric abstraction through his use of gouache and ink on paper, where triangular forms become vehicles for color relationships and spatial composition. The work reflects Calder's interest in pure abstraction that emerged from his early encounters with modernist movements, translating his sculptural sensibility into a two dimensional medium. This piece demonstrates his characteristic approach of balancing form and color to create visual harmony through seemingly simple geometric elements.