That looks like severe underdevelopment to me, but the color shift is wrong.
You can see the bluish tinge in the color negatives though which is typical of a problem, but an unusual one. I also see low contrast where the original post did not show that very clearly to me.
I guess now that it is either underdevelopment due to low temperature or dilution or time. It might also be bad film. In any event, I am basing this more on contrast now than on the hue of the final image. Did you prewet to bring the processing drum or tank up to 38 deg C? Did you hold it there for the entire 3' 15"?