Brownish yellow is a warm and earthy color that can be represented in different ways. The word "brownish yellow" itself implies a mixture of brown and yellow colors. Its antonyms, on the other hand, would be words that describe colors that are not in any way related to brown or yellow. Examples of antonyms for brownish yellow could include blue, green, red, or purple. Blue is a cool color, representing calmness and serenity. Green represents nature, growth, and abundance. Red signifies passion, excitement, and urgency. Purple connotes royalty, elegance, and sophistication. By knowing its antonyms, we can better understand the uniqueness and versatility of the color brownish yellow.