Here’s a color palette for your data consultant business featuring a cartoony octopus logo. This palette combines playful, vibrant colors with a professional feel, suitable for a consultancy:

 <Oceanic Insights>
1. Ocean Blue - 
                            
                            #0077B3
                         - A deep, professional blue that conveys trust and reliability.
2. Coral Pink - 
                            
                            #FF6F61
                         - A warm, inviting pink that adds a friendly touch, reflecting the playful nature of the octopus.
3. Seaweed Green - 
                            
                            #4CAF50
                         - A refreshing green that symbolizes growth and harmony, complementing the aquatic theme.
4. Sandy Beige - 
                            
                            #F2E1C1
                         - A soft beige that provides balance and warmth, reminiscent of sandy beaches.
5. Sunset Orange - 
                            
                            #FF9F00
                         - A vibrant orange that adds excitement and energy, perfect for attracting attention.

This palette captures the essence of the ocean while also being approachable and friendly, aligning well with your business’s playful branding.

What specific emotions or messages do you want your brand to convey? Would you like to explore variations of any specific colors?