Thank you for your feedback! Let’s choose a secondary color that is striking yet more subdued and pleasing to the eye. Here’s a revised color palette:

 <Modern Cold Greyscale with Subdued CTA>
1. Primary Blue - 
                            
                            #0077CC
                         - A vibrant blue that serves as the primary color, conveying trust and professionalism.
2. Soft Teal - 
                            
                            #009688
                         - A calming teal that provides a refreshing yet striking accent for call-to-action elements without being alarming.
3. Light Grey - 
                            
                            #D9D9D9
                         - A soft light grey that provides a neutral background, ensuring other colors pop.
4. Medium Grey - 
                            
                            #A6A6A6
                         - A mid-tone grey for text and secondary elements, offering a contemporary feel.
5. Dark Grey - 
                            
                            #4D4D4D
                         - A deep grey that can be used for headers and footers, enhancing readability and contrast.

This palette maintains a modern and professional look while using a more subdued color for your CTAs.

Do you think this new color for the CTAs fits better, or would you like to explore additional options?