Color reflected color depends upon the viewing angle. Numerous scientists have carried out research in butterfly wings and beetle shells, including Isaac Newton and Robert Hooke. Since 1942, electron micrography has been used, advancing the development of products that exploit structural color, such as "photonic" cosmetics. Color Color (American English), or colour (Commonwealth English), is the characteristic of human visual perception described through color "categories", with names such as red, orange, yellow, green, blue, or purple. This perception of color derives from the stimulation of cone cells in the human eye by electromagnetic radiation in the visible spectrum. Color categories and
Saffron (color) Saffron (color) Saffron is an orange color, resembling the color of the tip of the saffron crocus thread, from which the spice saffron is derived. The first recorded use of "saffron" as a color name in English was in 1200. It is considered as the most important colour in Hinduism, in which it is known as Bhagwa. The color has some significance in Buddhism; it is worn by the monks of the Theravada tradition. It is also an important symbolic color in India, where it was chosen in 1947 as one of the three colors of the Indian flag after