Image of the 12-color wheel

Quick answer：

The 12-color wheel is a color model that includes all 12 hues of the color spectrum. It is used in various fields such as design, art, and color theory to understand and categorize colors. The wheel typically starts with red and ends with violet, with the colors arranged in a circular pattern, each hue separated by equal intervals. It helps in understanding the relationships between different colors, including complementary and analogous colors.