Hue is color.
Red is a hue, green is a hue, blue is a hue, etc
Color evokes emotion.
Green with envy, feeling blue, seeing red with anger, etc.
You can use the white balance setting on your camera to manipulate how color appears in your pictures.
When you use the white balance settings on your camera to get intentional color shifts you can bring in the emotional element of color into your photographs.