Temperatures of flames by appearance

The temperature of flames with carbon particles emitting light can be assessed by their color:^[10]

• Red
  • Just visible: 525 °C (977 °F)
  • Dull: 700 °C (1,292 °F)
  • Cherry, dull: 800 °C (1,470 °F)
  • Cherry, full: 900 °C (1,650 °F)
  • Cherry, clear: 1,000 °C (1,830 °F)
• Orange
  • Deep: 1,100 °C (2,010 °F)
  • Clear: 1,200 °C (2,190 °F)
• White
  • Whitish: 1,300 °C (2,370 °F)
  • Bright: 1,400 °C (2,550 °F)
  • Dazzling:
    

    

    A Fire at 1/4000th of a second
    1,500 °C (2,730 °F)