C# trouble

I dont get it what am i doint wrong?


System.Drawing.Color col;
col = bmp.GetPixel(x, y);
int r = (col.R + col.G + col.B) / 3;
int g = (col.R + col.G + col.B)/ 3;
int b = (col.R + col.G + col.B)/ 3;
col = new System.Drawing.Color.FromArgb(r, g, b);
bmp.SetPixel(x, y, col);

I get

[The nested type `FromArgb' does not exist in the type `System.Drawing.Color'(CS0426)]

>>6

We are Expert Computer Scientists.  We are not petty programmers of your sort.

We are comfortable in any environment, writing code observant of any paradigm.

You should leave this place.