If no one has helped you with this yet.

The white shown on the ramp is not white. It is super white... dun du dun daa..

That is, if you carefully examine the example that has that value, and use the HSV values that are set in it's color ramp, (I don't have maya in front of me, so I can't tell you what they are), then you will get the transition yellow orange and then to black values you are looking for.