Product Block - change the hover color of ADD TO CART button

Please help me change the hover color of the Add to Cart button of the product block on this website page: https://www.inkshotlife.com/loaded-sexual-peak-performance 

Now the red "$43  |  Add to Cart" add to cart button has a lighter red hover color that is default for SQSP. SQSP settings do not allow me to change the color. I have the product block "$43  |  Add to Cart" in two places on the website page...toward the top of the page and towards the bottom of the page.  Please check the attachements.

Can you please give me custom code so that I can change the hover color to hex #7259f1 ?

Please check the attached image for reference. Thank you! 

Freed

Tuanphan, thank you SO much for your help with this. You are brilliant! 

Sorry for the delayed reply, I just saw your post today.