Apology for the delay. I had to dig deeper for the issue. This is not actually our issue. Safari mobile browser takes the number as the phone number and hence it makes the text blue. This only happens with Safari mobile browser. Pretty apple stuff
Finally, I have found a workaround. I have added this line to your Before Head section of Template Options. This will stop Safari mobile browser to treat the numbers as phone numbers.
<meta name="format-detection" content="telephone=no">
Please check your site and accept the answer if your issue is solved. It will be then easier to find the solution for the other users with the same issue. There is a button to accept answer after each comment.
Thank you.