which color fire is hottest
The hottest flame color is blue. Color is light, and light is a wave with energy. The higher the energy (in this case taking the form of heat), the shorter the wavelength and corresponding color. Blue is the highest energy light that humans can see, and therefore blue must be the hottest color of a flame. I THINK IT IS WHITE BECAUSE MY DADDY SAID SO.
Fire II: Color and Temperature. The dominant color in a flame changes with temperature. The photo of the fireplace fire is a good example of this variation. Near the logs, where most burning is occurring, the fire is white, the hottest color possible for organic material in general, or yellow. Above the yellow region, the color changes to orange, which is cooler, then red, which is cooler still.