Introduction In the realm of Japanese digital typography, few typefaces command as much respect and ubiquitous presence as Hiragino Sans (formerly known as Hiragino Kaku Gothic ). Among its extensive family of weights, the W9 variant stands out as the boldest and most assertive. While often overlooked in favor of the more common W3 (light) or W6 (bold) weights, W9 plays a critical role in design systems, serving as the heavy anchor for emphasis, headlines, and high-impact user interfaces. What is Hiragino Sans? Hiragino Sans is a humanist sans-serif typeface designed specifically for the Japanese language, developed by SCREEN Graphic Solutions (formerly Dainippon Screen). It is celebrated for its exceptional legibility, clean geometric structure, and subtle warmth—qualities that are difficult to achieve in CJK (Chinese, Japanese, Korean) typefaces due to the vast number of characters.