Flame Semi-Permanent Hair Colours One of the hottest colours of all time, Flame is here to turn up the heat and help you create fiery locks with fierce coppery tones of orange and red. For the most vivid results, we recommend applying to pre-lightened hair. The colour on the pot is a simulation of the colour on a level 10. Soft, silky hair never goes out of style. That’s why all our colours contain a conditioning formula that nourishes hair from first application.