I’ve done a video for Youtube for my workshops and classes, detailing how to do a color chart using the Zorn Palette. One of the components of it is using a value scale. I couldn’t figure out how to include a pdf for the value scale in the video so I’m posting it here, hoping that you’ll be able to access it to help with your color chart.
Here’s the link for the video:
https://www.youtube.com/results?search_query=robin+wellner
Have fun playing with these colors!!!