Stat card newbie challenge

Third challenge done (desktop only again) and I have 2 questions.

1. I designed the card + credits as 2 items column flex box but how do I push the second child (credits) to the button? Margins half worked because it pushed the card to the top too. Can I keep the first child centered while pushing the second only?

2. How do I make the purple filter on the image beautiful as the example? I tried few methods but it's not even close. Was I expected to edit the HSL values given in the style-guide (Soft violet (accent): hsl(277, 64%, 61%)) ?