How Impressionism Changed the Way We See Light and Colour

Walk into any major gallery in the world and you’ll find them — those luminous, light-filled paintings that seem to shimmer with colour even from across the room. Impressionism is one of the most beloved art movements in history, and for good reason. It fundamentally changed how artists approached their craft and how we, as viewers, experience the world through art.

But in the 1870s, when a group of young painters in Paris first began showing their work, the response was anything but warm. Critics mocked them. Galleries refused them. The art establishment thought they were having a laugh. So how did this band of rebels go from ridicule to reverence? Let’s take a closer look.

Breaking Free from the Studio

Before Impressionism, serious painting happened indoors. Artists worked from carefully arranged studio setups, producing polished, highly detailed works that took weeks or months to complete. Subject matter was expected to be grand — historical events, mythological scenes, or dignified portraits. The surface of the painting was supposed to be smooth and refined, with no visible brushstrokes.

The Impressionists turned all of this on its head. Armed with newly available portable paint tubes and collapsible easels, they headed outdoors — a practice known as plein air painting — to capture the world as they actually saw it. They painted gardens, rivers, busy Parisian streets, and ordinary people going about their day. The subjects were everyday and unpretentious, and that was entirely the point.

Chasing the Light

What truly set the Impressionists apart was their obsession with light. Rather than painting things as they “knew” them to be — a tree is green, a shadow is grey — they painted what their eyes actually perceived in a specific moment. They noticed that shadows weren’t simply dark versions of the local colour but were full of reflected hues — purples, blues, and violets. They saw that sunlight didn’t just brighten a surface but transformed its colour entirely.

To capture these fleeting effects, they had to work quickly. This urgency gave rise to the loose, broken brushwork that defines the style. Rather than blending colours smoothly on the palette, they placed dabs of contrasting colour side by side on the canvas, allowing the viewer’s eye to mix them optically from a distance. The result was a vibrant, shimmering quality that traditional painting simply couldn’t achieve.

The Exhibition That Started It All

In 1874, frustrated by repeated rejections from the official Paris Salon, a group of artists organised their own independent exhibition. The show featured works by artists who would become some of the most celebrated names in art history. A hostile critic seized on one particular painting’s title and used the term “Impressionism” as an insult, implying the works were mere sketches — unfinished impressions rather than proper paintings. The artists embraced the label, and a movement was born.

The Musée d’Orsay in Paris houses one of the world’s finest collections of Impressionist masterworks, offering visitors a chance to see these revolutionary paintings up close.

A Lasting Legacy

Impressionism’s influence on the art world cannot be overstated. By prioritising personal perception over academic convention, these artists opened the door to virtually every modern art movement that followed — from Post-Impressionism and Fauvism to Abstract Expressionism and beyond. They proved that art didn’t need to be polished, idealised, or grand to be powerful. Sometimes a fleeting glimpse of sunlight on water is more than enough.

Today, Impressionist paintings remain among the most popular and recognisable artworks on the planet. They remind us to slow down, pay attention to the light, and see the extraordinary beauty hidden in ordinary moments. And that, perhaps, is the Impressionists’ greatest gift — they taught us all to look more carefully at the world around us. For a deeper dive into the movement, the Metropolitan Museum of Art offers extensive resources on Impressionism and its lasting impact.