Here’s an updated color palette that emphasizes various blue hues, maintaining a playful and cartoony aesthetic while adding more shades of blue:

 <Cartoon Blues Galore>
1. Bright Sky Blue - 
                            
                            #00BFFF
                         - A vibrant and refreshing blue that brings a sense of fun and energy.
2. Light Azure - 
                            
                            #A4D8E1
                         - A soft light azure that adds a gentle touch, perfect for backgrounds and subtle accents.
3. Deep Ocean Blue - 
                            
                            #005EB8
                         - A strong, deep blue that provides depth and contrast, ideal for titles or primary elements.
4. Electric Blue - 
                            
                            #1E90FF
                         - A bold electric blue that enhances excitement and stands out in design.
5. Soft Powder Blue - 
                            
                            #B0E0E6
                         - A light powder blue that introduces a calming and airy feel to the palette.
6. Turquoise Blue - 
                            
                            #00CED1
                         - A vibrant turquoise that adds freshness and liveliness, complementing the other blues beautifully.
7. Cobalt Blue - 
                            
                            #0047AB
                         - A rich cobalt blue that provides a striking contrast and a touch of sophistication.
8. Cyan Blue - 
                            
                            #00FFFF
                         - A bright cyan that adds an energetic pop, perfect for playful elements.

This palette features a diverse range of blue hues, allowing for a dynamic and visually engaging design. Each shade can work well together while providing versatility in your cartoony theme.

Would you like to explore specific applications for these colors, or do you have any other requests for customization?