Just as colours can be a powerful tool to evoke emotion, they can work against you when used thoughtlessly. In the healthcare industry, black would bring negative connotations of uncleanliness and even death. Blue is a corporate colour that may convey distance and coldness in more casual industries such as children’s entertainment but professionalism in a corporate service environment. Yellow can be seen as eccentric and irrational, suggesting unprofessionalism if used in banking or finance. Combining colours can counteract negative connotations, while still fitting with brand and industry perceptions. For example, a combination of red and dark blue suggests a more balanced, professional image than red alone. If you do this, try to avoid two bright tones together, as this will limit the visibility of branding and cause colour clashes.