1, avoid shadows
Pure pure white black is always too dark in tone and too consistent (or peaceful) in color to form a satisfactory shadow. There are few really black shadows in nature, so these colors need to be considered when drawing shadows.
Mixed semi-color black is an improvement on pure black. It has a black appearance, but it is not black. Using complementary colors, shadows will have a more subtle and natural effect. This is the preferred method for dealing with shadows.
2. Color used to draw shadows The last lesson about the appropriate color in shadows comes from Impressionism. They are not only masters of painting, but also masters of observing the influence of nature and light.
Through this, they learned how to mix and use colors to create brilliant shadows. If black is not allowed, what will you use? Green and purple are popular shadow colors. Dark blue is also a good touch, because many shadows have natural blue tones.
3. Understand the types of shadows. A key part of drawing a successful shadow is to determine what kind of shadow it is, because there is no general shadow. You need to know the difference between cast shadows and formal shadows, and how to draw them.
Shadow is a part of an object, which is naturally dark and far away from the light source. These shadows (and highlights) are used to define the "form" of the object. Shadow projection is the shadow produced by one object, which blocks the light falling on another object. For example, your shadow is on the sidewalk on a sunny day.