Changing the ‘Buy Now’ button color can improve the call to action (CTA) of your website. Colors have a psychological effect on shoppers. The majority of research studies presented that red button colors have escalated conversions compared with green button. Red may be a dominant color but it may not apply to all websites. Selecting a good CTA button would make a difference on your website.
Tip:
You may change the background color and color according to your preference. You may use either hex-decimal code or color name.
You can pick a color using online HTML color picker tools: https://www.w3schools.com/colors/colors_picker.asp
How to Change the Color of the Buy It Now Button
STEP 1
In Shopify Admin, select Online Store then Themes.
STEP 2
Select your Debutify Shopify theme and click on Customize.
STEP 3
Go to Theme Settings.
STEP 4
Go to custom style/script.
STEP 5
Go to custom style, paste the following CSS, and click Save.
.shopify-payment-button__button{
background-color:green!important;
border-color:green!important;
color:white!important;
}