### Color Palette for Project Estimation Sheet

#### Palette Name: Professional Clarity

1. **Sky Blue**
   - **Hex Code:** 
                            
                            #4A90E2
                        
   - **Description:** A calming yet professional shade of blue that promotes clarity and trust, making it ideal for important documents like project estimations.

2. **Soft Green**
   - **Hex Code:** 
                            
                            #7ED957
                        
   - **Description:** This fresh, soft green conveys growth and balance, suggesting progress and a positive outlook on project outcomes.

3. **Warm Gray**
   - **Hex Code:** 
                            
                            #B7B7B7
                        
   - **Description:** A neutral warm gray that serves as a grounding color, providing a strong yet subtle backdrop for the other colors without overwhelming the content.

4. **Sunset Orange**
   - **Hex Code:** 
                            
                            #FF8C00
                        
   - **Description:** A vibrant and energetic orange that adds a touch of enthusiasm and urgency, perfect for highlighting key figures or deadlines in the estimation sheet.

### Summary
This palette is designed to create a visually appealing and professional project estimation sheet, fostering clarity, positivity, and engagement. The combination of calming blues and greens with neutral grays and energetic oranges strikes a balance between professionalism and approachability.