Conditional Formatting - Three Color for Balance v. Actual

Howdy! Hoping to get some help with a new project management sheet I am creating for a project we are working on in the architecture office. I am trying to use conditional formatting to notify a design if they are good, close, or over budget hours for each phase.

Column A has the different phases of design/construction.
Column B has the Budgeted Hours.
Column C has the Actual Hours.

I was trying to figure out how to either do a data bar or just a color gradient to fill the cell so they know they the status on the phase.
Green = Under Budget/Good | Yellow = At 75% of Budget Hours | Red = at 100% or more of the Budget Hours.

For example, if I put in anything from 0 to 58 in C4 it would be green since it is less than 75% of 78. It would turn yellow for any values between 59-77 and turn red for any values from 78 on up. And so on with the remained of the C column.

I was able to do the Green and Red easily, but I couldn't get the Yellow to work for the in between values of 75%-99%. I imagine I might need some if formula or something like that.

I attached a sample of the sheet I am creating. Thanks in advance for any help!