IRS tax forms do not allow the use of colored ink. Printing on white paper with black ink is the preferable method of printing out tax forms, according to the U.S. Internal Revenue Service.
It is possible to use a slight gray shading when printing out tax forms, although black is the preferable color, notes the IRS. It is also possible to use colored paper when printing out the tax forms, as long as the paper is the same color as the original form. This is necessary to expedite the process the IRS uses to separate tax forms due to many forms being similar in style.