Based on your request to use #199EE0 as the main color, here is a vibrant and playful color palette suitable for a kids’ staff magazine:

 <Kids Staff Magazine> 
1. Main Blue - 
                            
                            #199EE0
                         - A bright and cheerful blue that evokes feelings of trust and creativity. 
2. Sunshine Yellow - 
                            
                            #FFEA00
                         - A vibrant yellow that brings warmth and happiness, perfect for engaging young readers.
3. Playful Pink - 
                            
                            #FF6F91
                         - A fun and lively pink that adds a touch of playfulness and excitement to the design.
4. Grass Green - 
                            
                            #4CAF50
                         - A fresh green that symbolizes growth and nature, ideal for connecting with children's love for the outdoors.
5. Soft Orange - 
                            
                            #FF9800
                         - A warm orange that promotes enthusiasm and friendliness, making the layout feel inviting.

This color palette is designed to be energetic and engaging, appealing to children while also being suitable for a staff magazine.

Would you like to explore any specific elements or themes for the design, or do you need additional color variations?