What makes a film an immersive experience?
To answer this question, we need to look at it from the perspective of an audience to see what elements make him emotionally understand the story. As the audience starts to watch, the first thing that brings him in is the exposition of the film which tells him about the setting, characters, mood, and all the other information that he needs to know at this stage of the film to enter the story. In fact, story is the cornerstone of the film and every other element helps the audience to better experience the story. Elements like dialogues, locations, soundtrack, and Visual Rhythm. Although we think of rhythm as the sensory data derived from the sound of the film and perceived by our auditory system, there is another type of rhythm that is evoked by the visuals of the film and is perceived by our image analyzers subconsciously. And that concealed rhythm is embedded in Colors.
As the audience walks through the story, one of the most important elements that tell him what to feel are the colors. Colors contain feeling and meaning and together with other elements, make an immersive world around the story.
Look at the different shades of red color in the movie, Her. they’re telling the viewer about isolation, loneliness, the emotional state of the character, and his desire for love.
And then there is Samantha, a new possibility for care and love, which is also associated with red.

The color is almost everywhere in Theodore’s life, from his office to his apartment, you can see different shades of red, placed beautifully around him. There are scenes that using red, tells us there are other people in the same situation that the main character is in. a message that gets unfolded when he realizes that there are others with the same relationship he has. But the key to using one specific color throughout the film without overusing it is to balance it, scene to scene. there are scenes with lots of red, and there are other scenes that balance the use of red by limiting it to one or two little spots.

So when an audience is watching a movie, colors that are mostly used in the film, create a palette together. And that color palette creates a rhythm that aligns with the wave of the story.
Colors can tell us about the mood of a scene. They can tell about the personality and the inner world of the characters. What they are like, what they want, and even what they’ve been through. Colors can also intensify the flow of the story and the changes that happen to form the plot and make them more understandable. They create associations with meanings, again, like in this one, red for love, and the absence of red, for the absence of love.

Now if we go back to our question, we know that one possible answer is the use of color to tell the story and make it an immersive experience, for the eyes of the audience.