Sure! Below is a color palette designed specifically for an Excel-like data visualization involving input data, middle calculations, and results. Each category has a main color and a second shade to create a cohesive and functional palette.

### Color Palette: Excel Data Colors

1. **Input Data Color**
   - **Main Color:** Sky Blue
     - **Color Name:** Sky Blue
     - **Hex Code:** 
          
          #87CEEB
       
   - **Second Shade:** Light Blue
     - **Color Name:** Light Blue
     - **Hex Code:** 
          
          #ADD8E6
       

2. **Middle Calculations Color**
   - **Main Color:** Light Green
     - **Color Name:** Light Green
     - **Hex Code:** 
          
          #90EE90
       
   - **Second Shade:** Pale Green
     - **Color Name:** Pale Green
     - **Hex Code:** 
          
          #98FB98
       

3. **Results Color**
   - **Main Color:** Coral
     - **Color Name:** Coral
     - **Hex Code:** 
          
          #FF7F50
       
   - **Second Shade:** Light Coral
     - **Color Name:** Light Coral
     - **Hex Code:** 
          
          #F08080
       

### Palette Description:
This palette is designed to facilitate clarity and understanding in data representation within Excel. The **Sky Blue** for input data conveys a sense of calmness and clarity, making it easy for users to identify where data is being entered. The **Light Green** for middle calculations symbolizes growth and progress, indicating the processing phase. Finally, the **Coral** for results provides a vibrant and attention-grabbing color, ensuring that results are easily noticeable. The second shades of **Light Blue**, **Pale Green**, and **Light Coral** add depth and variation, making it easier to differentiate between different states within the same category while maintaining a harmonious visual flow. 

This palette is user-friendly and intuitive, perfect for anyone working with data in Excel.