Sitewide button color update from yellow to green
If we change the primary button color from yellow to green, then the clickthrough rate on calls-to-action (CTAs) will increase because improved color contrast enhances visibility and accessibility, making CTAs more noticeable and easier to interact with.
What We Changed
- Updated sitewide primary button color from yellow to green.
- Applied color change to all primary CTA buttons on desktop and mobile.
- Adjusted hover and active states to match the new green base.
- Ensured text contrast was WCAG-compliant.
The Results
We dig through every data source to map what's actually broken. By the end, there's no confusion.
Add-to-cart rate change
Lift in conversion rate
Add-to-cart rate change
Key Learnings
- Green buttons improved visibility, leading to higher interaction rates.
- Enhanced contrast made CTAs easier to notice and click.
- Improved readability increased user engagement.
- Better visual hierarchy reduced bounce rates.
Detailed results breakdown
Add-to-cart rate change
+5.0%
Average order value
-2.2%
Click-through rate change
+1.8%
Lift in conversion rate
+4.6%
Change in revenue per visitor
+1.7%
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30,000+ Monthly sessions.
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