You will need three items to make colored flames. The bright orange of most wood flames is due to the presence of sodium, which, when heated, emits light strongly in the orange. The Flame Colorants Colors Of Fire Bonfire Color With all of these salts burning different colors, all teachers have to do is line them up in the order of colors in a rainbow — red, orange, yellow, green, blue, indigo and violet. Different colors of fire flames . Indigo flames burn at just under 1650 degrees. It would be typical to see a fire consisting of a uniform material and heated in a controlled way show reddish, then orange and finally bright yellow flames, demonstrating increasing energy and heat released. This is the luminous flame because it emits light. The temperature of a flame will also affect its color. This is where the color comes in: This falls in line with the temperature at which wood burns. The blue in wood flames comes from carbon and hydrogen, which emit. Atoms are m...