Color Palette for Gantt Chart:

1. Color Name: Midnight Blue
   Hex Code: 
          
          #191970
       
   Description: A deep blue shade resembling the night sky, suitable for highlighting important tasks.

2. Color Name: Forest Green
   Hex Code: 
          
          #228B22
       
   Description: A rich green hue representing growth and progress, ideal for indicating completed tasks.

3. Color Name: Steel Gray
   Hex Code: 
          
          #808080
       
   Description: A neutral gray tone for indicating non-working hours or days in the Gantt chart.

4. Color Name: Goldenrod
   Hex Code: 
          
          #DAA520
       
   Description: A vibrant yellow shade for highlighting milestones and deadlines in the chart.

5. Color Name: Dark Orchid
   Hex Code: 
          
          #9932CC
       
   Description: A bold purple shade for marking critical paths or dependencies in the project timeline.

6. Color Name: Teal
   Hex Code: 
          
          #008080
       
   Description: A refreshing teal color for differentiating between different project phases.

7. Color Name: Salmon
   Hex Code: 
          
          #FA8072
       
   Description: A warm salmon hue for indicating delays or risks in the Gantt chart.

8. Color Name: Slate Blue
   Hex Code: 
          
          #6A5ACD
       
   Description: A cool blue shade for highlighting resource allocation or team assignments.

9. Color Name: Olive
   Hex Code: 
          
          #808000
       
   Description: A muted olive tone for distinguishing between project categories or types of tasks.

10. Color Name: Maroon
    Hex Code: 
          
          #800000
       
    Description: A deep maroon shade for denoting critical project phases or high priority tasks.

11. Color Name: Cornflower Blue
    Hex Code: 
          
          #6495ED
       
    Description: A calming blue hue for indicating project milestones or key events.

12. Color Name: Sienna
    Hex Code: 
          
          #A0522D
       
    Description: A warm sienna color for highlighting task dependencies or linkages in the Gantt chart.