Formal terms:
* Auburn: This is the most common and widely recognized term for reddish-brown hair. It typically refers to a warm, rich brown with reddish highlights.
* Chestnut: This term describes a darker shade of brown with reddish undertones. It can also be used to describe brown hair with a hint of red.
* Toffee: This term refers to a more caramel-like shade of brown with reddish highlights.
Informal terms:
* Strawberry blonde: This term is often used to describe lighter shades of brown-red hair, particularly when the red is more prominent.
* Copper: This term can be used to describe brown hair with strong reddish-copper highlights.
* Ginger: This term is generally used to describe red hair with auburn undertones.
Other terms:
* Mahogany: This term refers to a dark, rich brown with reddish undertones.
* Cinnamon: This term can describe a light brown with reddish-brown undertones.
Ultimately, the best way to describe brown-red hair is to use the term that best reflects the specific shade and individual preference.