The combination of colors that creates green is blue and yellow. In color theory, blue and yellow are primary colors, meaning they cannot be created by mixing other colors. When combined in equal parts, they produce green, which is considered a secondary color. This concept is fundamental to art and design, commonly used in painting, graphic design, and color mixing for various applications. Green is also symbolic in many cultures, often representing nature, growth, and fertility, making it a vital color in various contexts from aesthetics to environmentalism.