@DoveBunny, Welcome to the HP Support Community!
I understand you are not able to print in color from your MAC. Let us try these steps:
- Which application are you trying to print from?
- Have you tried printing different types of documents like PDF, Word, or Webpages and check if the issue persists?
Update the printer firmware
Click here to download and install the latest printer firmware from your MAC.
Click here to know different methods of updating printer firmware.
Also, check for any software updates on MAC
Click the Apple icon > About This Mac > Software Update and install any available update.
Check the print settings on the MAC. Refer to - Print Settings Guide
Make sure the 'Black and white; box is not checked:

Hope this helps! Keep me posted.
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Have a great day!
KUMAR0307
I am an HP Employee