Pipeline 6.1.3 change product button color

[Craig_Time]

I am trying to change the bg color of the product button. No success. 

Found this on the pipeline site but did not work. Any help would be great

https://help.groupthought.com/article/805-additional-tips-to-change-add-to-cart-button-colors

Page I want to change https://hellosoma.co.uk/products/cbd-balm 

Also could I change the text as well here?