The Symbolism of Pleasure and Optimism- Yellow Rugs Allow will liven up your space a little. Yellow, the palest color on the color wheel, is a symbol of pleasure, intellect, optimism, and vitality. It is a nice, bright shade that will warm any room. Yellow may fluctuate considerably depending on the quantity of light in the area, despite being a cheerful, bright color. Additionally, it is quickly impacted by its surroundings. When combined with green, yellow that has a trace of blue loses some of its warmth and takes on a citron-like color. Read this article.