Hatching, sometimes referred to as hachure, is a standardized system of patterns used in heraldry to denote specific colors, or tinctures, in monochrome illustrations. This technique is essential for reproducing coats of arms on surfaces where color reproduction is difficult or economically unfeasible, such as on coins, seals, and engravings. By using specific arrangements of dots and lines, heraldic artists can communicate a precise visual language that allows a viewer to identify the intended colors of a shield or emblem even in a black-and-white medium.

A monochrome coat of arms featuring various hatching patterns to represent different colors.
A modern example of a coat of arms using standardized hatching to denote tinctures in a black-and-white format.en.wikipedia.org

This image illustrates the practical application of hatching as a visual language to communicate specific heraldic colors in monochrome media.

The modern system of hatching was largely codified during the 1630s, following a period of experimentation during the Renaissance. While several systems emerged in the Low Countries—a region central to the development of heraldic art—the system popularized by Silvester Petra Sancta and Marcus Vulson de la Colombière became a standard. These systems were developed as a more sophisticated alternative to 'tricking,' an earlier method that used written abbreviations to indicate colors. The transition to hatching was driven by the technical limitations of copperplate engraving and woodcut printing, where producing multi-colored illustrations was a significant challenge for artists and publishers.

A historical 1645 engraving showing a heraldic table with various hatching styles.
A 1645 engraving from a heraldic table demonstrating the early codification of hatching systems.en.wikipedia.org

This historical figure supports the section regarding the codification of hatching systems during the 17th century.

Despite its widespread use, the history of hatching is marked by scholarly disputes regarding its origins. While some historians attribute the invention to Marcus Vulson de la Colombière, others point to Jan Baptist Zangrius, a copperplate engraver who published one of the earliest hatching systems in 1600. The development of these patterns was a collaborative effort between heraldists and engravers, as the precision required for tiny heraldic fields necessitated the fine lines that only copperplate engraving could provide. Today, these patterns remain a vital part of heraldic tradition, ensuring that the symbolic information of a coat of arms remains legible across different media and historical eras.

A detailed heraldic diagram showing different line and dot patterns for various tinctures.
A guide figure illustrating the specific arrangements of dots and lines used to identify heraldic colors.en.wikipedia.org

This diagram serves as a visual reference for the precise visual language of hatching described in the article.