A free app for Android, by Thịnh Nguyễn.
The 1 Pantone Color Book app is the best tool for Android users to quickly convert color values from one system to another. For example, from Pantone to CMYK or from RGB to Hex. This app is a handy utility that makes the conversion easy and fast.
This free app has a user-friendly interface and can be used as a quick reference. It can also be used to make a list of all the colors you have in your device and can be shared with your friends.
The app is very simple to use and the best thing is that you don't need to have any previous knowledge to make the conversion.
User reviews about 1 Pantone Color Book