Artists transform cold, hard metal into vibrant works of art through innovative color techniques. One popular method is patina application, where chemical reactions create rich blues, greens, and rust tones on copper or bronze surfaces. Some sculptors prefer powder coating, spraying dry pigment onto heated metal for durable, even finishes in any hue. Others employ heat coloring, carefully torching steel to produce rainbow-like oxidation effects. Enamel firing offers glass-like brilliance, while anodizing aluminum creates iridescent surfaces. Many combine techniques, layering patinas over textured areas or using masking to create patterns. The chosen method depends on the metal type, desired effect, and sculpture's environment. These color applications don't just beautify - they can protect the metal, add symbolic meaning, or guide the viewer's eye through the artwork's narrative. Contemporary artists continue pushing boundaries with new alloys and digital color-mapping technologies.