Blue Pearl is a custom typeface, a humanist flared sanserif typeface based on the proportions and shapes of the Roman capitals. Currently it consists solely of capital letters, as it was originally designed for a company logo (Blue Pearl Stone, a company based in Chicago, IL, USA). Since then, punctuation marks and diacritics have been added. While it was intended for brief content, it does work in blocks of texts when kept to a small font size.