c# xunit colour testing not work

 [Theory]
    [InlineData(0.75)]
    public void ColorBindTest2(double max)
    {
        DefaultColorUnit.MediumColorStatic = Colors.Yellow;
        DefaultColorUnit.HighColorStatic = Colors.Red;
        var excepted = Colors.Orange;

        Color actual = _asd.renkata(max).Item2;

        Assert.Equal(excepted.R, actual.R);
        Assert.Equal(excepted.G, actual.G);
        Assert.Equal(excepted.B, actual.B);
    }

This is my unit testing code and below is my real code

public Tuple<Brush, Color> renkata(double val)
{

    byte r1 = DefaultColorUnit.LowColorStatic.R;
    byte g1 = DefaultColorUnit.LowColorStatic.G;
    byte b1 = DefaultColorUnit.LowColorStatic.B;


    byte r2 = DefaultColorUnit.MediumColorStatic.R;
    byte g2 = DefaultColorUnit.MediumColorStatic.G;
    byte b2 = DefaultColorUnit.MediumColorStatic.B;


    byte r3 = DefaultColorUnit.HighColorStatic.R;
    byte g3 = DefaultColorUnit.HighColorStatic.G;
    byte b3 = DefaultColorUnit.HighColorStatic.B;
    if (val <= 1 && val > 0.5)
    {
        val = 2 * (Math.Abs(0.5 - val));

        Color p1 = new Color();

        byte r = (byte)((r3 * val) + r2 * (1 - val));
        byte g = (byte)((g3 * val) + g2 * (1 - val));
        byte b = (byte)((b3 * val) + b2 * (1 - val));
        p1 = Color.FromRgb(r, g, b);
        Brush sold = new SolidColorBrush(Color.FromRgb(r, g, b));

        return new Tuple<Brush, Color>(sold, p1);


    }
    else if (val == 0.5)
    {

        Brush sold = new SolidColorBrush(Color.FromRgb(r2, g2, b2));
        Color p1 = (Color.FromRgb(r2, g2, b2));

        return new Tuple<Brush, Color>(sold, p1);

    }
    else if (val < 0.5 && val >= 0)
    {
        val = 2 * (Math.Abs(0.5 - val));
        val = 1 - val;
        Color p1 = new Color();

        byte r = (byte)((r2 * val) + r1 * (1 - val));
        byte g = (byte)((g2 * val) + g1 * (1 - val));
        byte b = (byte)((b2 * val) + b1 * (1 - val));
        p1 = Color.FromRgb(r, g, b);

        SolidColorBrush sold = new SolidColorBrush(Color.FromRgb(r, g, b));


        return new Tuple<Brush, Color>(sold, p1);
    }
    else if (val > 1)
    {
        SolidColorBrush sold = new SolidColorBrush(Colors.Black);
        Color p1 = Colors.Black;
        return new Tuple<Brush, Color>(sold, p1);
    }
    else if (val < 0)
    {
        SolidColorBrush sold = new SolidColorBrush(Colors.White);
        Color p1 = Colors.White;
        return new Tuple<Brush, Color>(sold, p1);
    }
    else
    {
        SolidColorBrush sold = new SolidColorBrush(Colors.Blue);
        Color p1 = Colors.Blue;
        return new Tuple<Brush, Color>(sold, p1);
    }
}

I want to testing my color calculator from three color colour gradient. color.orange in visual studio is 255 165 0 but my orange is 255 127 0 my code is loking good on running. but testing it is not real orange where is my wrong is my code calculate wrong color rgb or colors.orange is not real orange.