Only the current version so far — new entries appear as the app ships updates.
いろ帳 - 色相環やトーンから直感的に色を選べる! is an art & design app by Kyohei Imamura with 10+ downloads (about 46 estimated). +1 installs in the last 7 days. Install growth, rank history, SDKs and ad networks.
From the store listing: “You can intuitively choose colors from the color wheel or tone! Save your favorite colors to your list and check the color code at any time.”