Color Palette:
1. Color Name: Electric Blue
   Hex Code: 
                            
                            #1500ff
                        
   Palette Description: This vibrant electric blue color is perfect for creating eye-catching signs. It exudes energy and stands out against various backgrounds, making it ideal for sign manufacturers who want to create attention-grabbing signage.

2. Color Name: Steel Grey
   Hex Code: 
                            
                            #808080
                        
   Palette Description: This muted grey color complements the electric blue shade, adding a touch of sophistication and balance to the overall color palette. It can be used as a background color or for text elements to create contrast and readability on the signs.

3. Color Name: Pure White
   Hex Code: 
                            
                            #ffffff
                        
   Palette Description: White is a classic color that symbolizes cleanliness and simplicity. It can be used as a base color for the signs, ensuring that the electric blue and steel grey stand out prominently. White also enhances readability and makes the overall design look modern and sleek.

4. Color Name: Sunshine Yellow
   Hex Code: 
                            
                            #ffcc00
                        
   Palette Description: Adding a pop of vibrant yellow to the palette brings a sense of warmth and positivity. This color can be used sparingly to highlight important elements or to draw attention to specific information on the signs, creating visual interest and enhancing the overall design.

5. Color Name: Midnight Black
   Hex Code: 
                            
                            #000000
                        
   Palette Description: Black is a timeless color that provides depth and contrast. It can be used for borders, outlines, or text elements, creating a sharp and professional look. Combining black with the electric blue and steel grey will create a visually striking color scheme for sign manufacturers.