Accent Colors
It's pretty boring if you just have one color for your entire page. To make your website look more exciting you can use accent colors on things like buttons, quotes, and subtitles. MIxing colors can be a tough task because it can sometimes be hard to determine which colors go together. Accent colors are used to highlight secondary information that is not a part of your main point. Try to limit to 1 or 2 accent colors because if there are too many colors, they create too many focal points for your audience to look at.
If you're stuck and can't find any good colors to match, there's a cool tool to help called Adobe Color CC Tool.
Sources
Connie. (2019, November 19). How to Choose Good Website Color Schemes (Nov 2019). Retrieved from https://www.websitebuilderexpert.com/designing-websites/how-to-choose-color-for-your-website/.