Karlie here from the Shopify Guru Team! What you could do is use an app that would provide you with the functionality of automatically tagging your customers based on specific criteria. There are a couple of apps that would work for you. Be sure to check out:
Another option for you would be to manually tag your customers.
To add a tag:
If those options won't work for your business idea, then I would suggest looking into hiring a Shopify Expert. Shopify Experts are developers, designers, photographers and marketers that you can hire to help you with different aspects of your online storefront. Be sure to check out our Shopify Experts, here.
I hope this has answered your question. If not, or if you have any further questions please let me know. I will be happy to help!
Hey there @cassidyjamesw!
Our Customer Fields app has an 'auto-tag' feature that does exactly what you have described. You can easily add a 'color preference' dropdown field to your store's registration form, and then any customer who registers for an account will get automatically tagged with the color that they selected from the dropdown.
If you have any questions, or if you would like help getting the Customer Fields app set up on your store, please let me know! 😎