Perceiving Color in Space: Neuroscience, Interior Design, and Human Experience
-Nirali Parekh Soni
As an interior designer, artist, educator, and author, I have always been drawn to the space between design and human experience the invisible territory where a room stops being a composition and starts becoming a feeling. Across years of practice spanning educational, hospitality, residential, and experiential environments, one question kept surfacing: Why do people experience the same color so differently depending on where they encounter it?
That question became the thread I could not stop pulling. Conventional color psychology offered a starting point: red energizes, blue calms, green restores, but it rarely held up against what I was actually observing in built spaces. Color seemed to change its character depending on the form around it, the volume it inhabited, the quality of light falling on it, and the memory a person brought into the room. This article is a reflection of that ongoing inquiry, drawing together insights from design, neuroscience, and environmental psychology to examine how we truly perceive color within interior space.
The Familiar Story and Its Limits
Color psychology has given designers a useful, accessible shorthand. Dating back to Johann Wolfgang von Goethe’s Theory of Colors (1810) and later formalized through the work of Faber Birren and Frank Mahnke, color-emotion associations have shaped everything from hospital interiors to retail environments. Mahnke’s Color, Environment, and Human Response (1996) remains a foundational text, mapping emotional and physiological responses to specific hues.
Yet even within this tradition, a more complex picture was always present. Josef Albers, in Interaction of Color (1963), demonstrated with radical clarity that color is never experienced in isolation. His famous simultaneous contrast studies showed that the same color square appears entirely different depending on what surrounds it. “Color is the most relative medium in art,” Albers wrote a statement that applies equally to interior space.
The experience of color in a room is not simply the experience of a hue. It is the experience of a hue within a system.
Why Color Is More Than Psychology
Perception begins with context
The brain does not process color as a fixed property of a surface. It reads color relationally always alongside surrounding forms, spatial proportions, lighting conditions, and material textures. This is consistent with Gestalt theory, particularly the principle of prägnanz, which holds that perception seeks the simplest, most complete organization of a visual field. In interior space, this means the brain perceives the room as a whole before it isolates any single color.
Rudolf Arnheim extended Gestalt principles into spatial perception in Art and Visual Perception (1954), arguing that visual experience is always shaped by the dynamic forces of form, tension, and balance. Applied to interiors, a color does not simply sit on a wall it participates in a field of relationships.
Form and volume shape emotional response
The same warm terracotta behaves differently in a double-height gallery than in a low-ceilinged alcove. Spatial scale influences whether a color feels expansive, grounded, or oppressive. This relationship between proportion and perception was central to the work of Le Corbusier, whose Modulor system sought to calibrate space to human dimensions recognizing that the body’s experience of volume is inseparable from its experience of surface.
Environmental psychologists Robert Gifford and Albert Mehrabian and James Russell also demonstrated through their Pleasure-Arousal-Dominance (PAD) model that emotional response to a space is shaped by the full sensory environment not by any single element in isolation.
Light continuously reshapes color
A muted beige reads as warm and intimate under afternoon daylight, and flat or institutional under cool overhead fluorescence. This is not a subjective impression it is a measurable phenomenon. Kevin Loe and colleagues, along with landmark research from the Lighting Research Center, have documented how correlated color temperature (CCT) and color rendering index (CRI) fundamentally alter how surfaces appear and how people feel within a space.
Tadao Ando built an entire architecture on this principle. In the Church of the Light (1989), emotional impact is generated not by applied color but by the transformation of light through geometry. The space feels contemplative because light is treated as the primary material.
Materiality is embodied, not just visual
The same color on timber, concrete, glass, and fabric produces four distinct experiences because the brain integrates visual information with haptic memory, texture, and perceived temperature. This is the basis of what phenomenologist Maurice Merleau-Ponty called embodied perception: the idea that we do not experience the world through the eyes alone, but through the full sensory body. Juhani Pallasmaa, in The Eyes of the Skin: Architecture and the Senses (1996), brought this thinking directly into architectural discourse, arguing that buildings are experienced haptically as much as visually.
Peter Zumthor’s Therme Vals (1996) is perhaps the most cited example of materiality as atmosphere. The muted gray-green of Valser quartzite, combined with moisture, sound, and spatial sequence, creates a color experience that cannot be separated from the tactile and thermal environment surrounding it.
Atmosphere is perceived before detail
In most spaces, people respond to the overall feeling before consciously registering individual colors, materials, or forms. This aligns with neuroscientist Antonio Damasio’s research on somatic markers the idea that the body registers an emotional response to an environment before the conscious mind has processed its components. In Descartes’ Error (1994), Damasio argued that emotion and embodied feeling are foundational to cognition, not peripheral to it.
Peter Zumthor formalized this in design terms through the concept of Stimmung atmosphere as the immediate, pre-reflective quality of a place. “Architecture has its own realm,” Zumthor wrote in Atmospheres (2006). “It has a special physical presence.” That presence is what people experience first.
Neuroarchitecture: A More Complete Framework
Neuroarchitecture a field that emerged formally through the Academy of Neuroscience for Architecture (ANFA), founded in 2003 asks not what a color means, but how a space is experienced by the nervous system. Research in this area has shown that environmental factors including daylight exposure, ceiling height, spatial complexity, material variation, and acoustic quality all directly influence cortisol levels, attentional capacity, mood regulation, and emotional resilience.
Esther Sternberg’s work in Healing Spaces: The Science of Place and Well-Being (2009) provides an accessible synthesis of this research, demonstrating that the built environment is a biological as well as aesthetic concern. Color, in this framework, is one variable within a complex sensory system significant, but never sufficient on its own.
This leads to a practical reframing for design thinking:
Traditional color psychology asks: What emotion does this color create?
A neuroarchitectural approach asks: How will this color be experienced within this specific environment?
A Framework for Spatial Color Experience
Drawing together these perspectives, color perception in interiors can be understood through the following relational framework:
Spatial Color Experience = Color + Form + Volume + Light + Material + Movement + Memory
This is not a formula but a way of thinking. Each element modifies the others. Movement through a space changes how color is encountered sequentially as Louis Kahn understood in the processional quality of the Salk Institute (1965), where shifting daylight and material restraint produce an evolving experience of the same space across time. Memory shapes what a person brings to a color before the first perception occurs, activating personal and cultural associations that neither the designer nor the palette can fully anticipate.
When these elements are considered together, interiors can do more than look beautiful. They can support emotional well-being, cognitive clarity, and a deeper sense of place.
Closing Reflection
Color, in the end, is not a property of surfaces. It is an event that occurs between a space, a body, and a brain shaped by light, form, material, memory, and time. The role of the designer is not simply to select a palette, but to choreograph the conditions through which color will be experienced.
That is, I think, where the most interesting design conversations are still waiting to happen.
Nirali Parekh Soni is an interior designer, educator, author, and researcher whose work explores the intersection of spatial experience, human behavior, and design thinking.
Key theories and references woven in:
- Goethe / Birren / Mahnke color psychology lineage
- Josef Albers color relativity and interaction
- Gestalt theory / Rudolf Arnheim perceptual wholeness
- Le Corbusier’s Modulor proportion and body
- Mehrabian & Russell’s PAD model environmental psychology
- Lighting Research Center / CCT & CRI light science
- Merleau-Ponty / Pallasmaa embodied perception
- Antonio Damasio somatic markers and emotion
- Peter Zumthor’s Atmospheres Stimmung
- ANFA / Esther Sternberg neuroarchitecture
- Tadao Ando, Peter Zumthor, Louis Kahn architectural precedents
