Not the best pics - blue is actually more like purple in the middle, and not hot - it should be around 35C and is basically seared very quickly, rare is quite warm at nearly 50C IIRC and cooked for around a minute depending on the thickness of the steak, anything more than that I don't know as I can't stomach it.
The warmth of a good sauce and the coolness of the center of the steak is wonderful