If you have created a Pivot Table to display your data, but when you try to sort your data by column it doesn't appear to work as you expected, it may be that a standard table is more suitable for your use case. This video explains the difference between these two formats.
Add your column to apply the scale to into Color and Label
In Color, navigate to Display and alter the color palette as preferred
To add additional columns with a color scale, add/duplicate your Mark, move the x-axis Subplot setting up by 1 (this determines it's position), and modify the Label and Color field to your new data point, editing the scale palette as earlier outlined.