Mixing blue and yellow creates the color green. This combination occurs because blue is a primary color, and yellow is another primary color, and when they blend, they produce this secondary color. Green is commonly associated with nature, representing growth, vitality, and freshness. It has various shades, from soft pastels to deep forest hues. The mixing of colors is a fundamental concept in art and design, where understanding color theory helps artists and designers create visually pleasing compositions.