Here’s a minimalist color palette for a pie chart featuring 8 colors, excluding purple, designed for a business presentation:

 <Business Presentation Pie Chart Colors>
1. Navy Blue - 
          
          #003366
        - A strong, professional blue symbolizing trust and reliability.
2. Emerald Green - 
          
          #50C878
        - A rich green representing growth and prosperity.
3. Goldenrod - 
          
          #DAA520
        - A warm golden color that conveys success and achievement.
4. Steel Blue - 
          
          #4682B4
        - A calm blue that adds professionalism without overwhelming.
5. Salmon Pink - 
          
          #FF8C69
        - An approachable yet sophisticated soft pink.
6. Charcoal Grey - 
          
          #36454F
        - A deep grey that provides elegance and balance.
7. Teal - 
          
          #008080
        - A calming blue-green that signifies clarity and trust.
8. Light Grey - 
          
          #D3D3D3
        - A neutral light grey that offers a clean backdrop for contrast.

This color palette is both professional and visually appealing, ensuring clarity while keeping a minimalist aesthetic.

Would you like to explore specific color adjustments or additional color combinations?