Here’s the updated color palette with standard red, green, and orange, while retaining the rest of the colors as specified:

 <Mixed Blues and Pastels with Standard Colors>
1. Light Sky Blue - 
                            
                            #A4D8E1
                         - A soft, light blue that evokes tranquility and clarity.
2. Medium Blue - 
                            
                            #3B7A9B
                         - A vibrant yet calming medium blue ideal for data visualization.
3. Dark Blue - 
                            
                            #2A4D69
                         - A rich dark blue that adds depth and contrast to your designs.
4. Navy Blue - 
                            
                            #1B2A49
                         - A deep navy that can ground the palette and enhance readability.
5. Light Lavender - 
                            
                            #E3D7E7
                         - A gentle light purple that adds a touch of creativity without being overwhelming.
6. Dark Purple - 
                            
                            #5D4C8A
                         - A bold dark purple that brings sophistication and depth.
7. Red - 
                            
                            #FF4C4C
                         - A bright, standard red that introduces warmth and energy to the palette.
8. Green - 
                            
                            #4CAF50
                         - A standard green that enhances the feeling of balance and vitality.
9. Orange - 
                            
                            #FF9800
                         - A bright, standard orange that adds a cheerful and inviting touch.
10. Light Gray - 
                            
                            #D3D3D3
                         - A neutral light gray that provides a calm background for data visualization.
11. Dark Gray - 
                            
                            #555555
                         - A deep gray that offers strong contrast and can be used for text or critical elements.

This palette now includes standard red, green, and orange, providing a vibrant contrast to the softer blues and purples while maintaining a professional look.

Would you like any further modifications or specific applications of these colors for your dashboard?