Depending on the metal in the chloride (Na, Ca, Sr, Li, ....).
No color. When burning chlorine, the flame gains no additional color from the chlorine. Examples of this may be found by burning Aluminum chloride or Magnesium chloride, both of which burn colorless. This means that Chlorine contributes no color to the flame.
When Magnesium chloride is burnt in a Bunsen flame, it imparts no colour in the flame.
A lila color, from potassium spectral lines.
Iron is a sort of sparkly-black when it is burned.
black
Bluish-green
No color. When burning chlorine, the flame gains no additional color from the chlorine. Examples of this may be found by burning Aluminum chloride or Magnesium chloride, both of which burn colorless. This means that Chlorine contributes no color to the flame.
When Magnesium chloride is burnt in a Bunsen flame, it imparts no colour in the flame.
Orangish yellow
The color is due to the radiation emitted by copper.
An yellow color, from sodium
The flame test for strontium - a strong red color.
Because important is the metal (sodium) and his spectral lines.
A lila color, from potassium spectral lines.
Calcium Chloride burns a deep orange with a slightly lighter orange core and has a light red glow at the top. The colour calcium chloride burns is described as brick red.
A bright green color is imparted to the flame by copper chloride
Mercury chloride color is yellowish-white.