If you work in a creative or artistic field, you ink color choice is a chance to show your skills, your vision and your style. If you are writing cards for your children, birthday cards for loved ones, or you are decorating any sort of love note, colored ink is not only allowed, but also encouraged.
Whatever ink you choose, remember that your pen choice, your handwriting and the color ink you use is a reflection of who you are and your intentions, so choose wisely, and make your written work count.