Answer:
c9
Step-by-step explanation:
In hex code, the format is # then two pairs to produce the Red, then Green, and lastly Blue.
The hex code follows the same layout as RGB which is Red Green Blue.(#RRGGBB) the maximum value for each color is FF, while the lowest is 00.
Red: #FF0000;
Green: #00FF00;
Blue: #0000FF
White: #FFFFFF;
Black: #000000;
The higher the pair, the more color it has, the smaller the less.