How big is big picture? Certain colors have come into fashion or gone out of fashion over time - for example, salmon pink was popular in the early 18th century, followed by mustard yellow around the middle of the century. White was dominant in women's clothing from about 1790-1810. Very bold colors were in vogue following the introduction of aniline dyes in the 1850s and 1860s. Or are you looking at broader trends?