From medieval ultramarine to Avatar, a brief cultural history of how blue evolved from sacred pigment to a visual language in contemporary cinema.

 

Generally speaking, colour is a power which directly influences the soul. Colour is the keyboard, the eyes are the hammers, the soul is the piano with many strings. The artist is the hand which plays, touching one key or another, to cause vibrations in the soul. —Wassily Kandinsky (1911)

 

Composition_VII — Wassily Kandinsky. Source: Wikimedia Commons.

 

This almost synesthetic way of understanding color —and how it affects us differently— helps grasp the complexity of artistic creation when the use of color is deliberate and conscious. Beyond its physical dimension, color is also an emotional experience.

For instance, yellow is often associated with joy or light; red with danger or passion; green can evoke toxicity, but also balance and nature. Each color seems to carry its own repertoire of cultural and affective sensations.

But where does blue take us?

Few hues illustrate chromatic ambiguity as vividly as blue. Straddling the perceptual and the symbolic, blue has historically been a color difficult to pin down with a single definition. For centuries, it was one of the rarest and most expensive pigments in European painting, linked to precious materials like lapis lazuli and reserved for figures of special importance within compositions. At the same time, it gradually acquired a broader cultural meaning: the blue of the sky, the sea, or the horizon came to represent that which lies beyond human reach.

 

Giotto — Detail of the Madonna and Child, Bologna Polyptych. Source: Wikimedia Commons.

From Medieval Ultramarine to Renaissance Symbolism

The cultural prestige of blue has grown steadily over history. In classical antiquity, Greeks and Romans did not consider it particularly noble. Often, it was associated with northern European peoples —the so-called “barbarians”— who, according to Roman sources, dyed their skin or hair with bluish pigments obtained from plants such as woad. For the Romans, this blue, far from evoking spirituality or transcendence, suggested something wilder, foreign, or primitive.

The cultural history of blue is, in this sense, a history of transformation. The color that in antiquity could be associated with barbarism would, centuries later, become one of the most prestigious pigments in European art.

In medieval and Renaissance painting, the most intense blue —ultramarine— was derived from lapis lazuli, a semi-precious stone mined primarily in Afghanistan and transported to Europe via long trade routes. The pigment was so costly that its use was reserved for especially important figures within a composition. It frequently appears in the Virgin’s robes or in sacred scenes, signaling both material and symbolic value. Artists such as Giotto, and later Johannes Vermeer, applied this deep blue selectively, highlighting the most significant elements of their works.

Over time, the color ceased to be merely a valuable pigment and became a broader cultural symbol. Blue came to signify transcendence: the sky as infinite space, the horizon as a promise of the distant, or the sea as an unfathomable depth.

 

The Milkmaid — Johannes Vermeer. Source: Wikimedia Commons.

 

Girl with a Pearl Earring — Johannes Vermeer, 1665. Source: Wikimedia Commons.

From Rubén Darío’s Modernism to Picasso’s Blue Period

By the late nineteenth century, this symbolic dimension leapt into literature. In 1888, Nicaraguan poet Rubén Darío published Azul…, a book that not only inaugurated Spanish-American modernism but turned blue into a kind of aesthetic program. The color appeared as a metaphor for a new artistic ideal: refined, cosmopolitan, culturally rich, and removed from everyday realism. It recurs throughout the book as an almost obsessive motif: a “smiling child, in blue stockings,” “moist, blue pupils,” “a blue dream,” or even the symbolic figure of a “blue bird.” With Darío, blue becomes an intellectual atmosphere, an aesthetic aspiration.

A few years later, the same color would take on a completely different meaning in modern painting. Between 1901 and 1904, Pablo Picasso developed what art history calls his Blue Period. His canvases filled with solitary figures: beggars, the blind, exhausted mothers, characters trapped in cold, nearly empty interiors. Blue, far from representing a refined ideal, became an emotionally dominant hue, a kind of psychological climate. In these works, the world itself seems to have cooled.

 

Woman Ironing — Pablo Picasso, 1901. Source: Wikimedia Commons.

If Darío had turned blue into a symbol of beauty, Picasso transformed it into a color of introspection and melancholy. In just a few decades, blue went from being the most precious pigment of European art to becoming an emotional language of modernity.

 

Blue in Cinema: A Cultural History of a Color

With the advent of cinema —an art form that quickly began absorbing languages from painting, literature, and music— blue moved into a new visual territory: moving images. From its earliest chromatic explorations, blue offered a wide spectrum of narrative possibilities. It could suggest night, silence, or distance; it could create atmospheres of nostalgia, or evoke technology, the future, and unknown worlds.

In many contemporary films, blue appears as a way of marking distance from everyday reality: a tone that separates the viewer from the immediate world and introduces them into a different space. Films like Three Colors: Blue, where the color accompanies the protagonist’s process of grief and search for freedom, or Blue Is the Warmest Color, where blue becomes a constant presence evoking melancholy, desire, and passion, demonstrate just how much color can function as a narrative element in its own right.

Few works, however, take this logic further than Avatar. In James Cameron’s saga, blue —far from being a mere expressive device— becomes the visual principle organizing an entire universe, with its own culture, values, and ecosystem.

On Pandora, the planet where the story unfolds, blue appears everywhere: on the skin of the Na’vi, in the bioluminescence of the flora, and in the night sky enveloping the landscapes. Here, color functions as a symbolic declaration: it marks the otherness of the world and its inhabitants. It is the sea and the sky extending across the bodies and surfaces of the planet, a nature living in that very hue. At the same time, this palette inevitably recalls the cold glow of digital screens, hinting at the presence —and threat— of human technology.

 

Images from Avatar showing the visual universe of Pandora and the dominant presence of blue in the film’s aesthetic. Source: IMDb.

There is also an intriguing paradox in this aesthetic. Pandora presents an exuberant ecosystem, yet its existence depends on some of the most sophisticated cinematic technologies of the twenty-first century: motion capture, digital rendering, and animation systems that transformed visual effects production. Blue thus becomes the color of digital cinema.

 

Avatar and Immersion: Blue as Environment

For centuries, blue was the color of the distant and the sacred —the sky, the horizon, or the divine—, but contemporary productions like Avatar have transformed it into a habitable, almost tangible world, building a complete environment around it. In this context, the immersive experience inspired by the film takes that logic a step further. In Avatar: The Experience, the viewer abandons their role as observer to become a visitor of a visual ecosystem, where bioluminescence, landscapes, and creatures transform blue into an atmosphere that can be explored and interacted with.

 

Images from Avatar: The Experience, where the world of Pandora becomes an immersive environment visitors can explore. Source: LETSGO.

Blue as a Cultural and Emotional Phenomenon

As art historian John Gage (1999) notes, color can be described physically —in terms of hue, saturation, or brightness—, but that definition barely explains how we truly experience it. Between objective perception and cultural interpretation lies a space where each era projects its own emotions and symbols, and blue has occupied that space in particularly intense ways.

The cultural journey of blue has thus entered a new stage. From a rare pigment in medieval painting to an aesthetic symbol in modernist literature, from emotion in Picasso’s works to atmosphere in contemporary cinema, blue has progressively expanded its territory. Today, in immersive experiences inspired by cinematic universes like Avatar, it ceases to be merely an image and becomes an environment the viewer can inhabit.

 

By the LETSGO Pen, Claudia Pérez Carbonell, on March 12th, 2025