Colour schemes for interiors: the four types and how to pick one
A clear guide to interior colour: how the colour wheel works, the four classic scheme types, the 60-30-10 distribution rule, and how lighting changes everything.
Choosing colours feels intimidating because the options are infinite, but in practice almost every successful interior follows one of four simple relationships on the colour wheel. Once you can name them, picking a palette becomes a decision instead of a gamble.
This guide covers the colour wheel basics, the four scheme types with where each works, the 60-30-10 rule for distributing colour, and why the same paint looks different in two rooms.
The colour wheel in one minute
The colour wheel arranges hues in a circle so their relationships are visible. Colours next to each other are analogous and harmonious; colours opposite each other are complementary and high-contrast. That single geometry underlies every scheme below.
Alongside hue, two other dimensions matter: saturation (how intense a colour is) and value (how light or dark). A 'blue room' done in pale, desaturated blue and one done in deep navy feel nothing alike, even though the hue is identical.
The four classic scheme types
Monochrome uses one hue across many values and saturations — pale grey walls, charcoal sofa, mid-grey textiles. It is calm and sophisticated and very hard to get wrong, but it needs texture to avoid feeling flat.
Analogous uses neighbours on the wheel (blue, blue-green, green). It is harmonious and natural — think of a room that drifts from sage to teal. Complementary uses opposites (blue and orange, the classic 'teal and terracotta') for energy and contrast; it is striking but use one colour as the lead and the other as accent.
Triadic uses three colours evenly spaced around the wheel. It is the boldest and the trickiest — best when one colour dominates and the other two appear only in small doses, or the room becomes a circus.
- →Monochrome → calm, elegant, easy to live with
- →Analogous → harmonious, natural, restful
- →Complementary → energetic, high-contrast, attention-grabbing
- →Triadic → playful, bold, demands discipline
The 60-30-10 rule
Whatever scheme you pick, distribute it roughly 60% dominant colour (walls, large surfaces), 30% secondary (upholstery, curtains), and 10% accent (cushions, art, small objects). This proportion is why professional rooms feel balanced rather than either bland or chaotic.
The 10% accent is where you can be brave. It is cheap to change and low-risk, so it is the right place for a strong complementary colour even in an otherwise quiet room.
Lighting changes everything
A paint colour is only ever seen under light, so the light source changes it. Warm bulbs push colours toward yellow and red; cool daylight reveals blue and green undertones. North-facing rooms get cool light and can make cool colours feel cold.
Always test paint on the actual wall and look at it morning, afternoon and evening before committing. A swatch that looked perfect in the shop under fluorescent light can read completely different at home.
In summary
Pick one of the four relationships, distribute it 60-30-10, keep the big items neutral, and test colours under your own light. That framework turns colour from a source of anxiety into a series of small, confident choices.
In Morf Vision you can recolour a rendered room instantly to compare palettes side by side before buying a single litre of paint.
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