Color Palette for Excel:

1. Valid Tone:
   - Color Name: Ocean Blue
   - Hex Code: 
          
          #0077B6
       
   - Description: Represents valid or correct data entries in Excel.

2. Invalid Tone:
   - Color Name: Warning Red
   - Hex Code: 
          
          #FF4D4D
       
   - Description: Indicates invalid or incorrect data entries in Excel.

3. Type 1:
   - Color Name: Green Success
   - Hex Code: 
          
          #2ECC71
       
   - Description: Represents a successful or completed task in Excel.

4. Type 2:
   - Color Name: Yellow Highlight
   - Hex Code: 
          
          #FFD166
       
   - Description: Used for highlighting important information or cells in Excel.

5. Type 3:
   - Color Name: Purple Accent
   - Hex Code: 
          
          #A463F2
       
   - Description: Adds a touch of elegance and distinction to elements in Excel.

6. Accent Color:
   - Color Name: Light Gray
   - Hex Code: 
          
          #D3D3D3
       
   - Description: Acts as a neutral background color for enhanced readability and contrast in Excel.