The hazel tree or a light brown color
Heysel is a rare variant of Hazel, derived from the Old English word 'hæsel' referring to the hazelnut tree. Historically, the hazel tree was associated with wisdom and protection in Celtic mythology. This specific spelling is extremely uncommon in the United States compared to its traditional counterpart.
Less common today
Heysel isn't in the latest US Top 1000. It last peaked at #9,021 in 2022.
US births per 5-year period, 1990βpresent (SSA data).