Here's a color palette based on your query, incorporating shades of blue, green, brown, and ochre. 

### Color Palette: Nature's Harmony

1. **Cerulean Blue**
   - **Hex Code:** 
                            
                            #3A9BD8
                        
   - **Description:** A vibrant and refreshing shade of blue reminiscent of clear skies, perfect for evoking a sense of tranquility.

2. **Emerald Green**
   - **Hex Code:** 
                            
                            #50B7A1
                        
   - **Description:** A rich green that reflects the lushness of nature, symbolizing growth and vitality.

3. **Earthy Brown**
   - **Hex Code:** 
                            
                            #7B5B4C
                        
   - **Description:** A warm, earthy brown that grounds the palette, capturing the essence of soil and stability.

4. **Golden Ochre**
   - **Hex Code:** 
                            
                            #D6A21E
                        
   - **Description:** A warm, golden yellow with a slight brown undertone, evoking the warmth of sunlight and autumn leaves.

5. **Teal Blue**
   - **Hex Code:** 
                            
                            #008C7A
                        
   - **Description:** A deep teal that combines blue and green, bringing a calming essence that mirrors serene waters.

6. **Moss Green**
   - **Hex Code:** 
                            
                            #4E6E3D
                        
   - **Description:** A subtle, muted green that embodies the soft hues of moss, adding a touch of earthy elegance to the palette.

### Palette Summary:
This palette, "Nature's Harmony," combines serene blues, vibrant greens, and rich earthy tones to create a balanced and organic feel, reflecting the tranquility and beauty of the natural world. Ideal for designs that seek to evoke a sense of peace, sustainability, and connection to nature.