Color Palette for Diving App:

1. Deep Sea Blue
   Hex Code: 
          
          #003366
       
   Description: This deep, rich blue represents the vastness and mystery of the ocean depths. It symbolizes the calmness and tranquility that divers experience while exploring the underwater world.

2. Coral Reef Orange
   Hex Code: 
          
          #FF7F50
       
   Description: This vibrant, warm orange shade represents the stunning coral reefs found in the depths of the ocean. It symbolizes the diverse marine life and adds a touch of energy and excitement to the color palette.

3. Aqua Turquoise
   Hex Code: 
          
          #00CED1
       
   Description: This refreshing shade of turquoise embodies the crystal-clear waters often encountered during diving adventures. It evokes a sense of serenity and invites users to dive into a world of exploration and relaxation.

4. Sunlit Yellow
   Hex Code: 
          
          #FDB813
       
   Description: This bright, sunny yellow color represents the warm sunlight that penetrates the water's surface, illuminating the underwater world. It adds a cheerful and optimistic touch to the color palette.

5. Abyss Black
   Hex Code: 
          
          #000000
       
   Description: This deep black shade symbolizes the darkness and mystery that lies beyond the reach of sunlight. It represents the depth and intrigue of the underwater environment, creating a sense of intrigue and adventure.

6. Pearl White
   Hex Code: 
          
          #FFFFFF
       
   Description: This pure white color represents the pristine beauty and purity of the underwater world. It symbolizes the elegance and grace of marine life, creating a sense of sophistication and tranquility.

Overall Palette Description:
This color palette for a diving app combines deep sea blues, vibrant coral reef oranges, refreshing aqua turquoise, sunlit yellow, abyss black, and pearl white. It captures the essence of the underwater world, offering a mix of calmness, excitement, and elegance. The palette aims to create an immersive and visually appealing experience for users, inviting them to explore the depths of the ocean from their device.