Reddish brown, the color that resembles the hue of rust, soil, or, sometimes, blood. Its opposite, an antonym or a contrasting term, would be a cool and light color like blue or green. The color blue is associated with calmness, serenity, and peace, whereas red suggests intensity, passion, and warmth. Green, on the other hand, symbolizes growth, nature, and harmony, which are the opposite qualities of the reddish-brown color. Thus, the opposite of reddish-brown is more than just a contrasting pigment; it is a whole set of emotions and meanings that create balance to one another.