(A universal design system)
With the overall structure of the design system in place, our next challenge was to define the visual core—ensuring that, even with a flexible token-based architecture, the components would remain aesthetically consistent and refined across all brands.
To achieve this, we established two key directions:
First, we defined a universal design foundation—the essential elements that must serve all products and services across the Yodobashi ecosystem. This included a broad, versatile color palette, a typographic system centered on Noto Sans (chosen for its multi-language support), and a neutral, adaptable icon set. These core elements were designed to meet a wide range of functional and brand-agnostic needs while maintaining visual harmony.
Second, we identified which aspects of the system could be used to express brand individuality. From brand-specific colors to subtle details such as component borders or shadow treatments, we structured the system so these expressive layers could either override or complement the universal foundation. This balance allowed each sub-brand to maintain its unique identity while still benefiting from a cohesive, shared design language.