Return color based on condition in controller

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C#

ASP.NET

controller

I want to show color based on some conditions to compare the values from my databases
I am using a web grid as my view to view those data as a table and the color will be present in a circle view I want it to return 3 different colors based on the condition but why is it only return else condition for all conditions?

What I have tried:

This is my controller

public string Color()
{
    using (AEntities d = new AEntities())
    {
        Mr mr = new Mr();
       
        if (mr.A <= mr.B)
        {
            return measure.Rcolor = "#000";
        }

        if (mr.A >= mr.c)
        {
            return measure.Rcolor = "#0000FF";
        }
        else 
        {
            return measure.Rcolor = "#FFFF00";
        }
    }
}
}

public ActionResult index()
{
    Cc colo= new Cc();           
    using (AEntities d = new AEntities())
    {
        List<MViewModel> model = new List<MViewModel>();
        foreach (Mr mr in d.Mr.Take(10))
        {
            model.Add(new MViewModel
            {
                Name = mr.Name,                       
                Result = mr.Result, 
                A=mr.A,
                B-mr.B,
                C=mr.C,                      
                Rcolor = op.Color(),
            });
            ;
        }
     
        return View(model);
    }