Anthra, as a descriptive term, denotes a color reminiscent of anthracite coal. This hue is a deep, almost black shade of gray. For example, certain industrial paints or textile dyes are described as anthra to indicate this particular dark gray coloration.
This specific dark gray possesses a visual neutrality that makes it applicable across various design fields. Its relative darkness allows it to function effectively as a background color, enabling other elements to stand out. Historically, shades similar to this have been utilized for their practicality and understated elegance in applications ranging from clothing to architecture.