Gantt Chart Help with Conditional Formatting Automation

[starbwoy]

Hey Guys- I'm not sure if this is even possible but I need some help. I have attached a file below similar to a gantt chart. I need help with the conditional formatting, as I have manually changed the colors to match what I need automated.

Basically I have 6 tasks and I need to change dates for individual projects but I also need the corresponding color to also change.

The file is fairly basic and hopefully someone can help me out.

Thanks in advanced for your help.