RHS JHS Color Converter

"RHS JHS Color Converter" is an app that "searches for a JHS color code from the code of the RHS colour chart" or "searches for a RHS colour code from the code of the JHS color chart".

* RHS colour chart : the fourth edition of the Royal Horticultural Society's Colour Chart
* JHS color chart : the second edition of the Japanese horticultural plant standard color chart

※ This app cannot be used as a substitute for the RHS color chart and JHS color chart. The colors displayed in the app corresponding to the color code vary greatly depending on the characteristics of the display and settings. Even if the model is the same and the settings are the same, it will be different for each device. These colors are displayed for intuitive understanding of the degree of approximation of the code.

Please see the following site for how to use this app.
https://android.brain-workout.org/rhsjhs/