The Importance of Accessories in Interior Design

What are accessories in interior design?

Accessories are the movable, non-structural items that finish a room once the large pieces are in place. Think of everything that sits on top of, hangs near or surrounds the furniture: art, mirrors, lamps, vases, plants, books, cushions, throws, rugs, clocks and decorative objects.

Furniture, flooring and wall colour set the foundation of a room. Accessories add character, texture and detail, and they are usually the easiest elements to change.

What accessories do

Accessories serve several purposes, and a well-styled room tends to use them for more than one at a time.

• Express personality. Collected objects, family photos and pieces you love make a room feel like yours rather than a showroom.
• Tie a scheme together. Repeating a colour or material in small items helps separate pieces feel related.
• Add texture and interest. Ceramic, glass, metal, wood and woven fibres give the eye something to rest on.
• Create focal points. A large mirror, a piece of art or a pair of lamps can anchor a wall or surface.
• Make a space comfortable. Lamps, throws and cushions often improve how a room works as well as how it looks.
• Allow easy change. Swapping cushions, art or objects refreshes a room far more cheaply than replacing furniture.

Functional vs decorative accessories

It helps to separate accessories into two broad groups.

Functional accessories have a job as well as a look. Examples include lamps, mirrors, clocks, trays, baskets, storage boxes, cushions and throws. Where possible, these should do their job properly first: a lamp should give useful light, and a clock should be easy to read.

Decorative accessories exist mainly for appearance. Examples include vases, sculptures, framed prints, candles, bowls and displayed collections. Many sources note that the most memorable rooms mix both kinds, so the space feels useful rather than purely staged.

Common types of accessories

• Wall art and mirrors. Often the largest accessories in a room. See our guides to choosing wall art for a living room and choosing artwork for a bedroom.
• Lighting. Table and floor lamps add layers of light and a sculptural element.
• Plants and flowers. Living or artificial plants add colour, shape and softness.
• Textiles. Cushions, throws and rugs add comfort, pattern and colour. See fabrics and textiles in interior design.
• Books and trays. Useful for building arrangements on coffee tables and shelves.
• Meaningful objects. Souvenirs, heirlooms and cultural or spiritual items, such as a Buddha statue, which deserves some thought about meaning and placement.

The 3-5-7 rule and the 70/30 rule

Readers often ask about these two “rules”. They are informal styling guidelines rather than fixed standards, and different designers describe them slightly differently.

3-5-7 rule. The general idea is to group decorative objects in odd numbers, such as three, five or seven, because odd groupings tend to look more natural and less rigid than even pairs. Use it as a starting point on a shelf or console, then adjust by eye.

70/30 rule. This is commonly described as a balance guide, for example roughly 70 percent of a scheme in calmer or dominant tones and about 30 percent in accent colours or contrasting pieces. In some contexts the same phrase is used for the proportion of filled to empty space on a shelf or wall. Because it is used in more than one way, treat it as a prompt to leave breathing room and keep accents limited rather than an exact formula.

Dos and don’ts of accessorising

Do

• Layer items at different heights, for example a tall lamp, a medium vase and a low bowl.
• Mix shapes, materials and textures so the arrangement does not look flat.
• Check scale: very small items can get lost on a large surface (see bad scale in interior design).
• Group objects together instead of scattering one of everything around the room.
• Consider lighting, since it changes how accessories look.

Don’t

• Fill every surface. Empty space helps the pieces you do display stand out.
• Buy matching sets of everything. Slight variation usually looks more considered.
• Choose accessories before you know your colours and style. It is easier to edit once the main scheme is settled.
• Ignore practical needs such as dusting, children or pets.

How to start accessorising a room

1. Finish the basics first. Large furniture, flooring and wall colour should be settled.
2. Pick a loose palette. Two or three colours plus a neutral is usually enough. Mixing warm and cool tones explains how to keep it cohesive.
3. Start with the biggest accessories. Add art, a mirror and lamps before smaller objects.
4. Group the small items. Build arrangements on a coffee table, shelf or sideboard using the odd-number approach.
5. Step back and edit. Remove an item or two if the arrangement feels busy.
6. Rotate over time. Seasonal changes or new finds keep the room feeling fresh; see fall interior design layering for one seasonal approach.

Common mistakes

• Clutter that hides the furniture and makes cleaning harder.
• Accessories that are too small or too uniform in height.
• Art hung too high, or sized too small for the wall or furniture beneath it.
• Following trends that do not suit the rest of the room.

FAQ

What is the purpose of accessories?

They add personality, texture and finishing detail, and some, such as lamps and mirrors, also serve a practical function.

Do accessories have to match?

No. They should relate through colour, material or style, but exact matching often looks dated or stiff.

How many accessories are enough?

There is no fixed number. A good test is whether each item has a reason to be there and the surfaces still have some clear space.

What is the easiest way to refresh a room?

Changing small accessories, such as cushions, throws, art or a few displayed objects, is typically the quickest and least costly option. Our cost to decorate a living room guide shows where that money usually goes.