Change background color of product pages

Using the theme settings, you can change the background color of your product pages.

Before:

After:

How to:

Open the Theme Editor. For a draft theme, use the Customize link for that theme:

If you're using a live/published theme:

Or:

Quick link if the theme is live/published:
Open Code Editor

Next,

Choose (1) Theme settings and then (2) Color:

Scroll down to Product Page and adjust the color there:

I've used #f6f6f6 in my example:

Use the Save button (top-right) to commit your changes:

hex color code references: