The pigmentation of writing fluids varies widely. Black, blue, red, and green are common, but countless other hues exist, including metallic and glitter options. The specific shade depends on the mixture of dyes and pigments used in its formulation. For instance, a typical black ink might utilize carbon black, while a blue ink might employ a phthalocyanine dye.
Color choice significantly impacts legibility and the overall impression of a document or artwork. Historically, specific colors held symbolic meaning, with black often associated with formality and red with importance or correction. The development of stable and vibrant inks has been crucial for communication, record-keeping, and artistic expression throughout history. The selection of a particular hue can influence the perceived credibility and emotional impact of the written word.