Guide on changing the menu color in Shopify. Please follow these steps:

1. Log in to your Shopify Admin:
   Go to your Shopify store’s admin page and log in with your credentials.
2. Navigate to Online Store:
   On the left-hand side, click on “Online Store.”
3. Customize your Theme:
   Within the Online Store section, you’ll find an option called “Themes.” Click on it.
4. Choose the Theme:
   You’ll see your current theme displayed. Click on “Customize” next to the theme you want to modify.
5. Access the Theme Settings:
   Depending on your theme, you might find a “Theme settings” or a “Header” option. Click on the one that seems most relevant to your menu.
6. Find the Menu Color Option:
   Look for an option related to the menu or navigation settings. It might be labeled as “Menu,” “Header,” or something similar.
7. Adjust the Color:
   Once you’ve located the menu color settings, there should be an option to change the color. It might involve a color picker, where you can choose the exact shade you want.
8. Save Changes:
   After you’ve set the desired color, be sure to save your changes. This is usually done by clicking a “Save” or “Publish” button.
9. Preview:
   Some themes allow you to preview changes before applying them. Take advantage of this feature to ensure the new menu color looks as expected.
10. Publish Changes:
    Once you’re satisfied with the preview, publish the changes to make them live on your website.

Keep in mind that the exact steps may vary slightly depending on your theme, but this general guide should help you find and modify the menu color in Shopify. If you encounter any difficulties or if you have a specific theme in mind, let me know, and I can provide more detailed instructions.