### Eco-Friendly Car Part Marketplace Color Palette

1. **Leafy Green**
   - **Hex Code:** 
                            
                            #4CAF50
                        
   - **Description:** A vibrant green that symbolizes sustainability and environmental consciousness, representing the eco-friendly aspect of the marketplace.

2. **Earth Brown**
   - **Hex Code:** 
                            
                            #8B5A2B
                        
   - **Description:** A warm, earthy brown that evokes a sense of reliability and stability, reflecting the durability of car parts.

3. **Sky Blue**
   - **Hex Code:** 
                            
                            #87CEEB
                        
   - **Description:** A light blue reminiscent of clear skies, promoting a sense of openness and innovation within the eco-friendly automotive industry.

4. **Sunshine Yellow**
   - **Hex Code:** 
                            
                            #FFEB3B
                        
   - **Description:** A bright and cheerful yellow that adds a touch of optimism and positivity, encouraging consumers to make eco-conscious choices.

5. **Slate Gray**
   - **Hex Code:** 
                            
                            #757575
                        
   - **Description:** A sophisticated gray that balances the palette, representing modernity and technology in car parts while maintaining an eco-friendly image.

6. **Soft White**
   - **Hex Code:** 
                            
                            #F5F5F5
                        
   - **Description:** A clean, soft white that symbolizes purity and simplicity, creating a fresh and approachable feel for the marketplace.

### Palette Summary:
This palette combines natural and earthy tones with bright accents to convey a message of sustainability, reliability, and innovation in the eco-friendly car parts marketplace. The colors work harmoniously to create an inviting and trustworthy brand identity.