Alizarin brown is a shade of brown that is commonly used in painting and dyeing. It is a dark and rich brown color that resembles the color of the alizarin pigment, which is derived from the madder plant. Synonyms for alizarin brown include mahogany, chocolate, chestnut, coffee, espresso, cocoa, burnt sienna, and umber. These colors are also dark shades of brown that vary in tone and intensity. Mahogany is a reddish-brown, chocolate is a deep brown, chestnut is a warm brown, coffee is a blackish-brown, espresso is a dark brown, cocoa is a rich brown, burnt sienna is an orange-brown, and umber is a dark brown with hints of red.