Blend neighboring colors

Quick answer：

Blending neighboring colors in art and design refers to the practice of mixing colors that are adjacent to each other on the color wheel. This technique creates harmonious and cohesive color schemes. Neighboring colors, also known as analogous colors, are those that are close to each other and share similar hues. For example, blue and blue-green or red and pink. Using neighboring colors can lead to a sense of unity and balance in a composition.