Green is the color between blue and yellow on the spectrum of visible light. It is evoked by light with a predominant wavelength of roughly 495–570 nm.
In the subtractive color system, 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.
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. In surveys made in Europe and the United States, green is the color most commonly associated with nature, life, youth, spring, hope and envy. Green is also the traditional color of safety and permission; a green light means go ahead, a green card permits permanent residence in the United States. Political groups advocating environmental protection and social justice describe themselves as part of the Green movement, some naming themselves Green parties. This has led to similar campaigns in advertising, as companies have sold green, or environmentally friendly, products.
During the Italian Renaissance, accessories were rampant and palaces were decorated with shades of green accented with minerals and cache pots. Interiors reflected the life styles of that time.
Our lives reflect the world today, no differently than the 16th century, or any century for that matter. If people are concerned about their future and whether or not their job is secure, they tend not to buy items in dusty or dirty tones.They tend to respond to colors that are more upbeat.
Art has impact in our color choices, as does music trends and rock stars. We tend to mimic what we see. Are people saving our planet? If so, obviously greens and blue are important.