Color doesn't have a universal "best" choice for conversion, but contrast, consistency, and intentional use of color around key actions consistently move the needle.
Make Your Call to Action Stand Out by Contrast
A button that visually contrasts with the rest of the page draws the eye faster than one that blends into a similar color palette.
Keep Brand Colors Consistent Across Touchpoints
Inconsistent color use between ads, landing pages, and emails creates a subtle sense of unfamiliarity that can undercut trust.
Test Rather Than Assume
Color psychology generalizations are a reasonable starting point, but actual audience behavior on your own site is the only reliable evidence.
Next step: Use the Color Picker to test contrast and pick a call-to-action color that stands out against your existing palette.