Coal or dark-colored
Koal is a modern phonetic spelling variant of the English word Coal. It likely originated as a creative variation of the name Cole, which itself derives from the Middle English 'col', referring to charcoal or a dark complexion.
Less common today
Koal isn't in the latest US Top 1000. It last peaked at #5,784 in 2003.
US births per 5-year period, 1990–present (SSA data).
