You can quickly test in the Immediate window? e.g.
and press enter key after to execute that line. ? is the same-as Debug.Print. It outputs a run results to the Immediate window.
I am not sure why you do that. >< equality comparisons are usually done for numerical values, not Strings. If you are trying to do something else, you might explain what that is if you want help.
When using a quote in a formula string, you have to add the quote. This is called the double quote method.
a(1) = "G1": b(1) = Evaluate(a(1) & "> ""H*"""): c(1) = RGB(255, 99, 99) 'red
a(2) = "n1": b(2) = Evaluate(a(2) & "> ""ps*"""): c(2) = RGB(99, 99, 255) 'Blue
a(3) = "n1": b(3) = Evaluate(a(3) & "> ""cs*"""): c(3) = RGB(99, 99, 255) 'Blue
a(4) = "ac1": b(4) = Evaluate(a(4) & "< 1"): c(4) = RGB(150, 150, 150) 'grey