Hello Joslynlee,
All font colors can be changed for the text that you are entering. When you are faced with a text box for entering a "Description" (on the lister page where you put in your description), or a "Seller Details" (where you can add text for areas like "payments", "shipping", "terms of sale"..) you will notice buttons and dropdown menus where you can change fonts, layout preferences...(if this is not the case you will need to locate the link, just above the box for entering the text, that says "Design Editor". Click that and you will see formatting tools). Highlight all the text that you wish to have a certain color applied, then click on the tool that has a letter "T" with a small square colored box with it. From here you can choose the color that you wish to change the text to.
Best of luck,