The term “carrot-topped” is often used for a person with reddish hair, but not all carrots are orange-red. There are white carrots, yellow carrots, and pale green carrots.
And if you were to look at some Dutch paintings from the 16th century, you’d find purple carrots too, because that’s what carrots looked like at the time. The familiar orange carrot did not appear in Europe until the 17th century!
Carrots were almost never eaten as a vegetable in the United States until just 60 years ago!