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
Colour guard of Nations are expected to lower their flags to the ground in full and regular salutes in ceremonies and parades. Civilians should stand during such times and soldiers are expected to salute them when not in formation. As the British Army, the Royal Air Force, the Royal Marines and the Royal Navy have several types of colours, there are also colour guards for these colours and these colours and their colour guards are as follows: In the cavalry, the Queen's Standard or Guidon and the Regimental/Squadron Standard or Guidon (for the light cavalry only) are the equivalents to the Queen's