Congratulations! You gained some knowledge on using color for UI design and how to ensure your websites are usable while remaining aesthetically pleasing.

Remember, the keys to designing for UI:

• Select a dominant brand color and supporting accent colors
• Use contrast to define sections and differentiate actions
• Use semantic colors for error and success messages
• Incorporate default colors for text and backgrounds where needed
• Neutral colors can provide good contrast
• Keep users in mind when selecting color

Following these guidelines allow you to create more elegant, engaging and beautiful websites!