Configure your store colors and branding in this panel. In your control panel, go to Storefront > My Themes, and click the blue "Customize" button to launch Theme Editor. In the left hand column of the Theme Editor, click the panel labelled 'Colors'
From the Color panel you can adjust page element colors to fit your branding.
A note about the options While there are a lot of customizable options for colors here, we recommend picking no more than two colors, and using shades of those for highlighting specific elements or states.