Here’s a 10-color palette that includes your specified colors, #041E42 , #8A8D8F , and #FFFFFF :

 <Deep Ocean Elegance>
1. Deep Sea - 
                            
                            #041E42
                         - A deep, rich navy blue that evokes the depths of the ocean.
2. Steel Gray - 
                            
                            #8A8D8F
                         - A cool, muted gray that adds sophistication and balance to the palette.
3. Pure White - 
                            
                            #FFFFFF
                         - A crisp, clean white that brings light and clarity to the design.
4. Coral Reef - 
                            
                            #FF6B6B
                         - A vibrant coral pink that contrasts beautifully with the deep blues and grays.
5. Sandy Beige - 
                            
                            #D6CFCF
                         - A soft, warm beige that provides a neutral backdrop and complements the cooler tones.
6. Ocean Foam - 
                            
                            #A7D3E0
                         - A light, airy blue that represents the gentle waves of the sea.
7. Deep Teal - 
                            
                            #005B5C
                         - A rich teal that adds depth and richness, reminiscent of deep ocean waters.
8. Charcoal Black - 
                            
                            #333333
                         - A dark charcoal that grounds the palette and adds elegance.
9. Sunset Orange - 
                            
                            #FF9A3E
                         - A warm, inviting orange that injects energy and warmth into the design.
10. Misty Gray - 
                            
                            #B0B3B3
                         - A soft, muted gray that harmonizes with the other colors while maintaining a calm aesthetic.

This palette combines deep oceanic tones with soft neutrals and pops of vibrant color, creating a balanced and sophisticated look. It’s perfect for designs that aim to convey elegance and tranquility.

What type of project are you planning to use this palette for? Do you have any specific design elements in mind that you want to incorporate?