What is the correct abbreviation for grey hair?

The correct abbreviation for grey hair is "GRY." This abbreviation is widely accepted in various contexts, particularly in industries related to fashion, beauty, and hair care. "GRY" effectively captures the essential information about the hair color, making it easily recognizable and understandable.

The choice of "GRY" specifically emphasizes the color grey, using the first letter "G" followed by "RY," which is commonly associated with the color grey in both printing and design. This clear representation helps in avoiding confusion with other shades or colors that could also begin with "G."

Other options, although they may seem plausible, do not accurately convey the specific connotation of grey hair. For instance, using "GY" might lead to ambiguity regarding what color is being referenced, while "GH" could suggest a shorthand that is not standardized for hair color. "GRA" might evoke a different association altogether, which strays from the intended meaning. Therefore, "GRY" stands out as the most fitting and widely recognized abbreviation for grey hair.