Based on your query, here’s a color palette that harmoniously combines the provided colors along with two additional complementary shades:

### Color Palette: Coastal Serenity

1. **Deep Teal**
   - **Hex Code:** 
                            
                            #003B2D
                        
   - **Description:** A rich and dark teal that evokes the depths of the ocean, bringing a sense of tranquility and sophistication.

2. **Golden Sand**
   - **Hex Code:** 
                            
                            #D9B64D
                        
   - **Description:** A warm, golden yellow reminiscent of sunlit beaches, adding a touch of brightness and warmth to the palette.

3. **Slate Gray**
   - **Hex Code:** 
                            
                            #708090
                        
   - **Description:** A subdued gray with blue undertones, providing a modern touch and balance, reminiscent of stormy skies and rocky shorelines.

4. **Ivory**
   - **Hex Code:** 
                            
                            #FFFFF0
                        
   - **Description:** A soft, creamy white that offers a fresh and clean backdrop, allowing other colors to stand out while maintaining an airy feel.

5. **Light Steel Blue**
   - **Hex Code:** 
                            
                            #B0C4DE
                        
   - **Description:** A cool, pale blue that reflects the peacefulness of the sea, adding a gentle contrast and enhancing the calming vibe of the palette.

6. **Coral**
   - **Hex Code:** 
                            
                            #FF7F50
                        
   - **Description:** A vibrant coral hue that injects a pop of color and energy, reminiscent of coral reefs and adding a playful touch to the serene palette.

### Palette Overview:
This color palette, "Coastal Serenity," captures the essence of a coastal landscape, blending deep oceanic tones with the warmth of sandy beaches. The combination of earthy and airy colors creates a harmonious balance, ideal for designs that aim to evoke tranquility, warmth, and a touch of nature.