Customizing the Next Step / Checkout Button color can help uphold the brand and design consistency of a website. Here’s how to do this.
Go to WC Plus > Branding & Colors > Body tab.
You’ll get three color options under Body Colors. The third one is the Body-Next Step/Checkout Button Colour option.
Click the color in the box. You can manually select a color using the eye-dropper tool or copy-paste your desired color code.
Press the Update Settings button at the end to save the changes.