I'm working on a data product, and there is a requirement to categorise individual cells. This is currently achieved by changing the colour of the text within that cell, for example, black = real data, blue = estimate data (see image below).
I don't really like the aesthetics of this and also it wouldn't help users that are colour blind, so I have been looking at alternative options. One way I thought of achieving this is through a coloured dot next to the value, with a tooltip that shows on hover to help colour blind users (shown below). However the stakeholders didn't really like this option.
Can anyone help me to find a solution that is both accessible, but also aesthetically pleasing?