Here’s a color palette based on your query for "dark blue green." This palette features a range of complementary shades that evoke the essence of dark blue green tones.

### Dark Blue Green Color Palette

1. **Midnight Teal**
   - **Hex Code:** 
                            
                            #004B43
                        
   - **Description:** A deep, rich teal that evokes the mystery of the ocean depths, this color serves as a strong foundation for the palette.

2. **Deep Sea Blue**
   - **Hex Code:** 
                            
                            #007B7F
                        
   - **Description:** A vibrant, dark blue with hints of green, reminiscent of the deep sea, this color adds a lively touch to the overall palette.

3. **Forest Teal**
   - **Hex Code:** 
                            
                            #006D6A
                        
   - **Description:** A darker, muted teal that brings a sense of earthiness, echoing the colors found in a dense forest.

4. **Emerald Abyss**
   - **Hex Code:** 
                            
                            #005B5D
                        
   - **Description:** This color blends dark green and blue, resembling the depths of an emerald lake, providing depth and richness.

5. **Pine Green**
   - **Hex Code:** 
                            
                            #004D3D
                        
   - **Description:** A dark, earthy green with a hint of blue, reminiscent of pine trees in shadow, adding a grounded element to the palette.

6. **Teal Shadow**
   - **Hex Code:** 
                            
                            #003E3C
                        
   - **Description:** A nearly black teal that offers a dramatic contrast, this color can be used for accents or backgrounds, emphasizing the other colors in the palette.

### Palette Summary:
This dark blue green color palette captures the beauty of deep waters and lush forests, creating a serene and sophisticated atmosphere. The interplay of rich, dark tones makes it perfect for designs that aim for elegance and tranquility.