Orange (colour) and absorb mostly greenish-blue light. (See also shades of orange). Other orange pigments include: The orange colour of carrots, pumpkins, sweet potatoes, oranges, and many other fruits and vegetables comes from carotenes, a type of photosynthetic pigment. These pigments convert the light energy that the plants absorb from the sun into chemical energy for the plants' growth. The carotenes themselves take their name from the carrot. Autumn leaves also get their orange colour from carotenes. When the weather turns cold and production of green chlorophyll stops, the orange colour remains. Before the 18th century, carrots from Asia were usually purple,
Orange (colour) of the carved pumpkins, or jack-o-lanterns, used to celebrate the holiday. People associate certain colours with certain flavours, and the colour of food can influence the perceived flavour in anything from candy to wine. Since orange is popularly associated with good flavour, many companies add orange food colouring to improve the appearance of their packaged foods. Orange pigments and dyes, synthetic or natural, are added to many orange sodas and juices, cheeses (particularly cheddar cheese, Gloucester cheese, and American cheese); snack foods, butter and margarine; breakfast cereals, ice cream, yoghurt, jam and candy. It is also often added to children's