Failed adjacent color matching

Quick answer：

Adjacent color matching is a concept in color theory where colors are placed next to each other on the color wheel. A failed adjacent color match occurs when the colors do not complement each other well, leading to an aesthetically unpleasing combination. This can be due to a lack of contrast, color harmony, or understanding of complementary and analogous colors. To improve adjacent color matching, it's important to study color theory and experiment with different color combinations.