Mixing blue and yellow results in the color green. This color combination is frequently used in art and design, where primary colors combine to create secondary colors. In the case of blue (a primary color) and yellow (another primary color), their mixture yields green. Variations in the amounts of each color can create different shades of green, ranging from pale yellow-green to deep, rich green. This fundamental principle of color mixing is essential for various applications, including painting, graphic design, and color theory studies.