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.