Colors is reality tend to be more complex than this, with cooler hues in the shadow influenced by colors in the environment, like the blue of the sky or the brown of a porch deck. If you project blue light onto a surface, it won’t magically pick out a contrasting hue.
However, this post is a good reference if you need to work quickly while keeping your art looking vibrant. Actually, it’s the same method this mod likes to use in her own work!

