Sub logos can make it easy for potential clients and customers to navigate a brand that has many service offerings. In this case their primary customer market is education, and the foundation of their business, so we chose blue for that category. For example, in the future they may market to a commercial architecture outreach via web ads or mail in which they’ll use the yellow logo and branding for that industry. When a user visits their website in response to the ad they’ll follow the yellow color coded call to action on the homepage and projects to view only relevant information to their industry, in this case commercial.