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,
The Color Orange using an orange hat, camera bag, tie, pen, paper, dress, suit, bag, etc. The Color Orange organization described it as this: "The strict censorship can ban the use of obvious symbols of human rights, but the use of The Color Orange cannot be banned." The Color Orange organization decided to paint the "Pillar of Shame" which has become a renowned memorial of the Tiananmen Massacre orange, to protest against the violation of human rights in China. The Danish artist Jens Galschiot and his staff took a flight to Hong Kong in order to paint the "Pillar of Shame" orange. As