The spa's graphic identity, based on that of Ark Hills Club, was inspired by a Corbusier painting owned by the client. The brand was applied to all printed material, spa products, signage and clothing.

The Ark Hills Club is located on the 37th floor of the Ark Mori building in Tokyo and incorporates a gallery exhibiting the work of Le Corbusier. The graphics for the club took inspiration from these artworks, abstracting elements of the paintings to create the club identity, with simple typography over illustrative colour blocks. This approach was further developed for the identity of the sister club, Ark Hills Spa, with calm aspirational photography added to communicate the context of health and fitness.