None are in color. I have shot many color IR images, but I have since removed them from my site.
Most of the "color" you may see is the result of lith printing, or perhaps some hand coloring (only on the ir article as I recall), or from the platinum processes I use.
Lith printing is a great way to get a lot of color from monochrome images in the printing phase. It also helps with more difficult IR negatives due to the control over contrast and density of the negative.