Only the current version so far — new entries appear as the app ships updates.
色見本 is a productivity app by KOUJI KAWAI with 1,000+ downloads (about 4K estimated). +1 installs in the last 7 days. Released Feb 7, 2013. Install growth, rank history, SDKs and ad networks.
From the store listing: “It is a color sample chart of Japanese name. You can see the RGB values in easy-to-see list display.”