Elderly children tend to have a broad perception of color. In addition to being interested in bright and bright colors, they are also able to accept and enjoy grayer and darker colors. The color scheme of travel shoes, sports shoes, sandals and other footwear worn by children is mainly based on contrasting colors, with red and green, blue and orange, blue and red, red, blue and yellow being the most commonly used contrasting colors. Girls' shoes are also suitable for matching white and pink colors, while boys' shoes are suitable for matching black or gray with high-purity colors. The color combination design of big children's leather shoes is mainly based on similar color combinations, mainly including a series of colors such as brown, camel, coffee, and yellow. The combination of black and white can also achieve ideal results.