Sure, I can help with that.
Here is the color palette based on your requirements:

 <Vibrant Harmony> 
1. Primary - 
          
          #FF5733
        - A vibrant and energetic orange
2. Secondary 1 - 
          
          #33FF57
        - A fresh and lively green
3. Secondary 2 - 
          
          #337AFF
        - A calming and serene blue
4. Light Background 1 - 
          
          #F5F5F5
        - A light gray with slight saturation
5. Light Background 2 - 
          
          #E0E0E0
        - A slightly darker shade of gray for light theme
6. Light Background 3 - 
          
          #CCCCCC
        - A subtle gray for light theme
7. Dark Background 1 - 
          
          #333333
        - A dark gray with slight saturation
8. Dark Background 2 - 
          
          #1A1A1A
        - A slightly lighter shade of gray for dark theme
9. Dark Background 3 - 
          
          #000000
        - A deep black for dark theme
10. Light Border - 
          
          #999999
        - A soft gray for borders in light theme
11. Dark Border - 
          
          #666666
        - A darker gray for borders in dark theme

Do you have any specific preferences for the primary color or any other aspect of the color palette?