Orange (colour) colours on a television or computer screen), orange is generated by combining high intensity red light with a lower intensity green light, with the blue light turned off entirely. Orange is a tertiary colour which is numerically halfway between gamma-compressed red and yellow, as can be seen in the . Regarding painting, blue is the complementary colour to orange. As many painters of the 19th century discovered, blue and orange reinforce each other. The painter Vincent van Gogh wrote to his brother Theo that in his paintings, he was trying to reveal "the oppositions of blue with orange, of red
International Colour Day of the International Colour Association, AIC 2012 held in Taipei, Taiwan. As expressed by designer Hosanna Yau, from Hong Kong, "two circles form an eye, with an equal half of rainbow color and black representing light and darkness, day and night, everyone feast one's eye on the international color day." Some of the activities and events that are unfolded on the International Colour Day: Pakistan International Colour Day An international colour day (ICD) has been considered as appropriate since colour is, thanks to visual perception, one of the most influential phenomena in people’s lives and also one of the channels