Yellow is a bright, optimistic color that can be used to convey happiness and mental clarity. It's also associated with intellect because it symbolizes knowledge - as in sunlight or through reading books.

A variety of shades fall under this hue such as sunshine yellow which has an invigorating quality while golden rays give off warmth like what you might experience after exploring by yourself on vacation without any company around! Different people have different preferences when assigning meanings but these associations will always remain true: there isn't much better than experiencing something new surrounded only by your thoughts (and maybe some butterflies)!