Here's a quick comparison:
* Red dwarfs: The coolest stars, with temperatures around 3,000 K
* Yellow dwarfs: Like our Sun, with temperatures around 5,500 K
* White dwarfs: Hotter than yellow stars, with temperatures around 10,000 K
* Blue giants: The hottest stars, with temperatures exceeding 30,000 K
It's important to remember that these are surface temperatures. The core of a star is much hotter!