This article is red rose valentine the color. Chinese honor guard in column 070322-F-0193C-014. Red is the color at the long wavelength end of the visible spectrum of light, next to orange and opposite violet. Red pigment made from ochre was one of the first colors used in prehistoric art.
In the Renaissance, the brilliant red costumes for the nobility and wealthy were dyed with kermes and cochineal. The 19th century brought the introduction of the first synthetic red dyes, which replaced the traditional dyes. Since red is the color of blood, it has historically been associated with sacrifice, danger, and courage. Modern surveys in Europe and the United States show red is also the color most commonly associated with heat, activity, passion, sexuality, anger, love, and joy. The cardinal takes its name from the color worn by Catholic cardinals. Pink is a pale shade of red. Cherry blossoms in the Tsutsujigaoka Park, Sendai, Miyagi, Japan.
Vermilion is similar to scarlet, but slightly more orange. Hindu women put a stripe of sindoor in their hair to show they are married. Ruby is the color of a cut and polished ruby gemstone. Bulls, like dogs and many other animals, have dichromacy, which means they cannot distinguish the color red.
They charge the matador’s cape because of its motion, not its color. The human eye sees red when it looks at light with a wavelength between approximately 625 and 740 nanometers. Bulls, for instance, cannot see the red color of the cape of a bullfighter, but they are agitated by its movement. One theory for why primates developed sensitivity to red is that it allowed ripe fruit to be distinguished from unripe fruit and inedible vegetation.