First off, fall is a transitional season, one in which we slowly move from the golden sticky warmth of summer and into what is often a cold, brittle winter. Color theory has shown that different hues are associated with varying emotions, and yellow has consistently been linked to energy, happiness, warmth. As the sun prepares to hide itself before five and temperatures dip, wearing clothes in shades that evoke feelings of spring and summer–in this case, butter yellow–serves as a way to brighten up the tedium of fall neutrals (and your mental state).