Who knows about photography? Help me explain what "contrast color" and "harmony color" are.

Analysis:

Contrast color:

The two colors that can be clearly distinguished are called contrast colors. Including hue contrast, lightness contrast, saturation contrast, cold and warm contrast, complementary color contrast, color contrast and achromatic contrast. It is an important means to form obvious color effect, and it is also an important method to give color expression. Its form of expression is better than simultaneous comparison and successive comparison. For example, yellow and blue, purple and green, red and blue, any color and black, white, gray, dark and bright, cold and warm, bright and dark are all contrasting colors.

Harmonious colors:

More than two colors cooperate with each other to form a harmonious and beautiful color. For example, a little red in evergreen shrubs is a harmonious color configuration, while red tops and green pants are not harmonious.