How can I change the background color for each product variant?

Hi Guys,

I would like to have a specific background colour depending on the variant

here is the website link: https://yoku-apparel.com/collections/all-products/products/snow-white-one

now colours are like here below but I would like to have specific RGB for each one, could you please help me?

Thanks

Ale

Hi! anyone can help me?

Thanks!