White chocolate is chocolate as it contains cocoa butter, but does not contain chocolate liquor or any other cocoa products. It is easily identified because of its ivory color.
Milk chocolate
Milk chocolate is light brown in color, has a creamy texture, and has a sweet flavor. As per the FDA definition, milk chocolate must contain at least 10% chocolate liquor and 12% milk.
Dark chocolate
Dark chocolate lacks milk solids and has a dry, bitter aftertaste. Rich in antioxidants, it helps to protect one's heart health and improves blood flow throughout the body.
Ruby chocolate
Famous for its pretty pink color, ruby chocolate was officially unveiled by Belgian-Swiss cocoa company--Barry Callebaut--in 2017. It has a fruity flavor with a tinge of sourness.
Bitter chocolate
Bitter chocolate is pure chocolate liquor, made of ground cocoa beans. It is not meant for consumption on its own and is best used in cooking combined with sugar.