**Color Palette for Architectural Presentation Slides**

1. **Slate Gray**
   - **Hex Code:** 
                            
                            #708090
                        
   - **Description:** A versatile and sophisticated gray that evokes a sense of stability and professionalism. Ideal for backgrounds and text, providing excellent readability.

2. **Terracotta**
   - **Hex Code:** 
                            
                            #D76B30
                        
   - **Description:** A warm, earthy orange that represents creativity and innovation. This color is perfect for highlighting key architectural elements and adding a touch of warmth to presentations.

3. **Cool White**
   - **Hex Code:** 
                            
                            #F5F5F5
                        
   - **Description:** A clean and crisp white that enhances the overall brightness of the slides. It serves as an excellent base color, ensuring other colors pop while maintaining a modern aesthetic.

4. **Seafoam Green**
   - **Hex Code:** 
                            
                            #B2E0D3
                        
   - **Description:** A calming, muted green that symbolizes growth and harmony. This color can be used for accents and infographics, creating a refreshing contrast against the stronger tones.

5. **Midnight Blue**
   - **Hex Code:** 
                            
                            #2C3E50
                        
   - **Description:** A deep, rich blue that conveys depth and trustworthiness. It’s perfect for headers and important text, lending a sense of authority to architectural designs.

### Palette Description:
This color palette combines professional tones with warm accents, creating a balanced visual experience for architectural presentations. The inclusion of neutral shades and a calming green allows for clear communication of ideas while maintaining an elegant and modern feel. Each color has been selected to ensure clarity, readability, and an overall cohesive look that resonates with architectural themes.