This application is a creative interactive tool with color as the core, integrating fun challenges and practical functions. It is specially created for users who love color, design and visual thinking training. The application mainly consists of three modules: color matching challenge, color converter and color wallpaper generator. First of all, "Color Matching Challenge" is a small game that tests observation and reaction skills. Players need to find the color that exactly matches the target color block from multiple candidate color blocks within a limited time.The game is designed with a multi-level mode. The difficulty of each level increases, and the color interference items will gradually approach the target color. At the same time, the player's score and the highest score are recorded, and local persistence and achievement challenges are supported, which greatly improves the fun and challenge. Secondly, the "Color Converter" module provides practical color tools. Users can input Hex colors or RGB values, quickly convert each other, and display a real-time color preview at the same time.The conversion results can be copied directly, making it easy for designers or developers to quickly apply them in projects, improving efficiency and accuracy. Finally, the "Color Wallpaper" module allows users to customize gradient wallpapers. Just enter the starting color and ending color to generate an atmospheric gradient effect and save it to the album with one click. Gradient colors can be used on the desktop or lock screen, taking into account visual beauty and personalization needs.The application interface is simple and elegant, the operation is smooth, it supports dark and light modes, and fully considers user experience and ease of use. Through the organic combination of three modules, this application is not only an entertainment and puzzle tool, but also a design auxiliary application that allows users to exercise their color perception abilities in games and quickly process color information in work or life, achieving the perfect integration of learning, entertainment and practical functions. Whether it is daily entertainment, visual training, or design assistance, this application can meet users' diverse needs for color operation and experience.