fargeveksel

Fargeveksel is a Norwegian term that can be translated as color exchange or color shift. In an encyclopedic sense, it describes phenomena in which colors are redistribited, altered, or perceived differently within a system. The term is used across several fields, including textiles, chemistry, optics, and color management, to refer to changes that affect the appearance or behavior of color without necessarily introducing a new hue.

In textiles and dye chemistry, fargeveksel often refers to the diffusion and migration of colorants between fibers or through a dye bath. Such exchanges can produce unintended color shifts, for example when dye molecules move from one area of fabric to another during washing or drying. Conversely, controlled fargeveksel can be used deliberately to create effects such as gradients or variegated tones. The phenomenon is closely linked to dye fastness, diffusion rates, and the chemical compatibility of dye and fiber.

In color science and visual perception, fargeveksel can describe how the same object may appear to change color under different lighting conditions or against different surrounding colors. Metamerism is a related concept in this domain, where two colors match under one light source but not another.

In printing, display technologies, and digital color management, fargeveksel can refer to exchanges or transformations of color information between devices, color profiles, or rendering intents, which can lead to conveyed colors differing from source references.

See also: metamerism, dye migration, diffusion, color management.