### Color Palette: "Traffic Light Blues"

#### Description:
This palette features four distinct shades of blue, arranged in a traffic light ranking scheme. Each shade represents a different level of intensity or urgency, similar to a traffic light system, making it ideal for visualizations, infographics, or any design that requires a clear hierarchy. 

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1. **Shade 1: Sky Blue**
   - **Hex Code:** 
                            
                            #87CEEB
                        
   - **Description:** A light and airy blue, representing the "Go" signal—indicative of calmness and clarity.

2. **Shade 2: Denim Blue**
   - **Hex Code:** 
                            
                            #1E90FF
                        
   - **Description:** A medium blue that symbolizes a transition; this color can denote readiness for action and is often associated with trust and dependability.

3. **Shade 3: Royal Blue**
   - **Hex Code:** 
                            
                            #4169E1
                        
   - **Description:** A deeper, vibrant blue representing caution; it conveys a sense of importance and attention.

4. **Shade 4: Navy Blue**
   - **Hex Code:** 
                            
                            #000080
                        
   - **Description:** A dark and powerful blue, symbolizing "Stop." This shade conveys seriousness, authority, and urgency.

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### Additional Colors for Variety:

5. **Light Steel Blue**
   - **Hex Code:** 
                            
                            #B0C4DE
                        

6. **Steel Blue**
   - **Hex Code:** 
                            
                            #4682B4
                        

7. **Medium Slate Blue**
   - **Hex Code:** 
                            
                            #7B68EE
                        

8. **Dodger Blue**
   - **Hex Code:** 
                            
                            #1E90FF
                        

9. **Cyan**
   - **Hex Code:** 
                            
                            #00FFFF
                        

10. **Turquoise**
    - **Hex Code:** 
                            
                            #40E0D0
                        

11. **Teal**
    - **Hex Code:** 
                            
                            #008080
                        

12. **Light Sky Blue**
    - **Hex Code:** 
                            
                            #87CEFA
                        

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This palette provides a versatile range of blues that can be effectively utilized in various design contexts, with a clear ranking and emotional response associated with each shade.