How to match 9 colors to look good

Quick answer：

Matching 9 colors effectively involves considering color harmony and contrast. To achieve a pleasing palette, consider using a color wheel to find complementary and analogous colors. Start with a dominant color, then add harmonious shades or tints to create depth and interest. Use color theory principles like monochromatic, complementary, triadic, or tetradic schemes to guide your choices. Experiment with different color combinations, and remember that balance and proportion are key to a visually appealing design.