Gattaca's Unadorned, Yet Masterful Use of Color
In the film essay, The Language of Color in Gattaca, Daniel Tu expertly deconstructs how Gattaca's sublime use of color serves "to initiate the viewer into a powerful visual subtext."
The film uses three basic colors to denote what the author refers to as the character's identity—"yellow to illustrate Vincent's past, blue to depict his future and green to bridge the two." This use of color is further utilized to underscore and define the three stages of Vincent's life throughout the film, aligning perfectly with each act.
Gattaca's first act is dominated by yellow. The use of yellow here highlights Vincent's identity as an in-valid. This is reified as Vincent realizes his brother Anton, who is younger than he is, is growing taller than him; and then again when he realizes his endurance is worse than Anton's during the swimming scene. We also see yellow when Vincent is denied acceptance into the space program. The visual reinforcement not only highlights Vincent's in-validness but, as referenced above, denotes his past.
Over time, the film moves away from yellow, as Vincent realizes that his genetic limitations are not the ultimate mark of death for his dream. This is noted when Vincent leaves home to pursue his aspiration of space exploration.
Blue, artificial and unnatural, is used in the film to denote that Vincent is now Jerome, or at least transitioning to Jerome's status as valid (artificial and engineered). The use of blue is seen during all scenes referencing genetic material. It is shown when Vincent is in the shower, symbolically depicting the removal of his imperfect DNA. The sequence where Irene takes one of Vincent's hairs is also shown in blue, because the hair is in fact Eugene's, who is modified and valid. The dichotomous nature of blue and yellow serves as a stark juxtaposition between Vincent's natural state and Jerome's artificial one.
Finally, the use of green denotes the transition between these states (mixing blue and yellow makes green). Vincent's reverie for space exploration is denoted in this green, as he transitions from his yellow, in-valid state, to his blue, valid one. This is more beautifully depicted upon Vincent first meeting Eugene, where the former is shown under a simultaneously green and yellow background, once again denoting this transition. Eugene is primarily shown in green, as he is the bridge between the in-valid and valid world. Before Vincent begins his physical transformation, the use of green is subtle; the scene after his surgery and where Vincent and Eugene gaze at the stars is entirely backlit in green, denoting that Vincent is now ready to assume the identity of Jerome.
While green is used as a tone of transition, it also functions to represent a potential or dangerous situation where Jerome can change back to Vincent. This is shown in the scene where Vincent must keep a steady heartbeat as he runs on the treadmill, and is further shown when he is at the checkpoint with Irene, as the scene is thoroughly overwhelmed by green.
In keeping with this schematic, the most distinct scene shows Vincent watching a rocket launch into space. The rocket leaves a bright and yellow trail contrasted against a deep blue night sky. This symbolic scene illustrates Vincent's reverie as an in-valid (yellow) penetrating a genetically perfect society (blue).
The two moments in the film where color is completely absent provide a thematic function on the basis of the film's message of breaking away from limitations. The first moment is shown after Anton and Vincent swim for one last time, with Vincent going back to save his genetic counter. As the scene is entirely set in black, the subtext signifies that Vincent has now transcended his genetic limitations, and is no longer encumbered by notions of "validity, in-validity, or threats to his identity."
Gattaca's denouement depicts Vincent flying into space, referencing the moment he watches the yellow rocket launch into the blue sky. In this culminating scene, devoid of color, we see the film's message reified through this interplay of color, where black now sets the tone for a world where Vincent can be free, untethered to a colorful one set by genetic limitations and impositions.