"Mustard" in the context of linen medium weight fabric typically refers to a warm yellow-brown color, similar to the shade of mustard seeds or the condiment itself. It's a rich and earthy tone, adding warmth and depth to textiles and garments.
"Red brick" is a deep, earthy red color resembling the hue of traditional bricks used in construction. When used to describe linen medium weight fabric, "red brick" would indicate a fabric of that particular color, capturing the rich and earthy tone reminiscent of red bricks.
"Moss" typically refers to a shade of green that resembles the color of moss found in nature. In the context of linen medium weight fabric, "moss" would indicate a fabric with a green hue similar to that of moss, often a muted or earthy green tone.