<Habit Tracker Palette - Darker Tones> 
1. Focused Blue - 
                            
                            #4A90E2
                         - A calming blue that encourages concentration and clarity of mind, ideal for maintaining focus on habits.
2. Energetic Orange - 
                            
                            #FFAB40
                         - A vibrant orange that symbolizes energy and enthusiasm, motivating users to stay active.
3. Grounded Brown - 
                            
                            #7D5B29
                         - A deep brown that evokes stability and reliability, providing a sense of foundation for tracking progress.
4. Deep Slate - 
                            
                            #4B4B4B
                         - A dark gray that adds sophistication and depth, perfect for providing contrast and emphasizing important elements.
5. Rich Charcoal - 
                            
                            #282828
                         - A very dark gray that conveys strength and seriousness, enhancing the overall readability and user experience.

This updated color palette maintains a more robust and grounded aesthetic, focusing on darker tones to enhance readability and create a stronger visual impact.

What kind of mood or emotion do you want your users to feel while using your habit tracker?