New color palette for a website

I have an existing website that needs a new color palette. This job is simple: come up with 3 (or more) choices for various color palettes to use, and provide examples of how they would look with the existing site (should be easy just change the html/color elements).

Details:

The current site is dark-themed. It was originally created that way to appeal to a crypto-oriented audience, but now I’d like to change it to a light-themed site to appeal to a much broader consumer audience (we’ll be marketing to normal consumers outside of crypto).

For color palette, I’d like to stay away from the standard blues that Venmo/PayPal etc., use (though an interesting variant might work). I’d like an “edgier” color palette, but one that’s still professional without being too serious. However, it’s an app that deals with people’s money, so I’d like to go for something clean that gives off a sense of trust. I’ll provide more details once a designer is chosen.