In the theme editor (Customize)=> Theme Settings, click Colors
Theme color: Primary color for hover, active, focus, and highlight
Page Background, Content background: Body Background, Html Background, Content Background
Heading : Color H1, H2, H3, H3, H4, H5, H6
Sub Top Text: Color subHeading
Body Text: Color Content
Button: Background and Color Button
Alert & Message
Color Shipping Bar: This is Color Shipping bar on Product page and Cart