Director used color in the film in an attempt to remain true to the original intent of the graphic novel, as well as to give the film comic books feel. The colors used in the film tended to remain toward the primary end of the spectrum.
Reds were utilized to emphasize sex, sensuality, and violence. Such as the scenes with women in red dresses whom are killed shortly after. The Blues indicated heartlessness, emotionally abstracted, and selfishness. The Blue of the car and the blue eyes were in possession of these characters which exhibited these traits. Greens were used for simple envy and a “reptilian like soul”, as exhibited by the cardinal. Yellow was use to depict evil, vileness, putrescence and perversion as in the case of the character “Junior”.
The full color scenes connected the three stories together and were the scenes in which the characters came closest to being shown in a benign light. These scenes took place exclusively in the bar.
High Contrast Grayscale was used to keep the film noir feel produced in the graphic novel.
Occasionally, white was used for blood particularly in shots that were not close-ups. It seems that this was done at times to emphasize the contrast between the grey lit areas and darker shadows. As well, in some eastern cultures such as
In the scenes where “Dwight” was hallucinating that the dead police officer was talking, the highlights inside the car kept cycling through different colors – blues, yellows, reds, purples, greens. This provides a subtle indication that the murderer “Dwight” – like all murderers – is mentally unbalanced.
As well, in the scene where “Dwight” and the hookers killed the mob men in the alley, the sky was lit harshly in red light – a nod to the association of red with violence.