green - choose a jigsaw puzzle to solve

Green is the color between blue and yellow on the visible spectrum . It is evoked by light which has a dominant wavelength of roughly 495–570 nm. In subtractive color systems, used in painting and color printing , it is created by a combination of yellow and blue , or yellow and cyan; in the RGB color model, used on television and computer screens, it is one of the additive primary colors , along with red and blue , which are mixed in different combinations to create all other colors . By far the largest contributor to green in nature is chlorophyll, the chemical by which plants photosynthesize and convert sunlight into chemical energy . Many creatures have adapted to their green environments by taking on a green hue themselves as camouflage . Several minerals have a green color , including the emerald , which is colored green by its chromium content. During post-classical and early modern Europe , green was the color commonly associated with wealth , merchants, bankers and the gentry, while red was reserved for the nobility. For this reason , the costume of the Mona Lisa by Leonardo da Vinci and the benches in the British House of Commons are green while those in the House of Lords are red . It also has a long historical tradition as the color of Ireland and of Gaelic culture . It is the historic color of Islam , representing the lush vegetation of Paradise.