Issue:

The palette with the background colours for the table has been recently changed. 

The lightest and the middle colour now look identical, and their hex code is also the same. This affects the dark theme. When I click on "inspect page" their code is also the same. That means there is no difference.

Steps to Reproduce

1. Change the theme of the Confluence site to dark mode
2. Create a page and add a table
3. Select a table cell
4. Try changing the background colour 
5. Once you try to select the colour from the palette, you will notice a few similar colours in the palette. 

Expected Result: 

The palette colour should be according to the mode, i.e. light and darker. 

Actual Result: 

The palette colours appear the same in both, i.e., light and darker. 

Screenshot for reference:

The customer already has pages created and is dependent on this difference. It changes the way users perceive our content, and it would require extensive editing, resulting in significant time and effort on the customer's part.