I have never seen Jesus portrayed as very blonde with blue eyes.
Jeffrey Hunter, in 1961's King of Kings, in 1961, was a sort of strawberry blonde, rather than pure blonde, and definitely with blue eyes:
I haven't seen that version - but in 1961 I'm not surprised. I doubt anyone thinks Jesus had blue eyes. I always imagined people picture Jesus as resembling them. For instance, I think Asians would portray him as Asian, etc. The Bible doesn't say much about what Jesus looked like so it's interesting to see different people's interpretation.