The base color for chestnut is medium- to dark-brown hair, so if that's your starting color, you're already halfway there. This color is a "level six or darker that has neutral and warm tones ...

Chestnut hair color is a rich brown with red undertones. As the days start to get shorter and we turn to toasty blankets and hot drinks to keep us cozy, it's only natural that you may be itching ...

Markle debuting her new "chocolate chestnut brunette" hair color in Canada last week. ... followed by two layers of glossing for “tone-on-tone reflection and really, really intense shine.” ...