Colour is the cheapest way to change a room. It is also the easiest way to regret one.
Part of the interior design Chelmsford guides by Rachel Buscall Interiors. See all interior design guides.
Most colour mistakes come from the same few causes. Choosing from a tiny sample. Ignoring the light. Treating every room as if it stood alone. Avoid those and you are most of the way there.
Start with what you cannot change
Look at what stays. Floors. Worktops. A fireplace. A big sofa. These are fixed points, and your scheme has to sit with them.
Notice their undertones. A stone floor can lean warm or cool. So can a white worktop. Hold a paint sample next to it. If the two fight, you will see it at once.
Read the light
Light changes colour more than anything else.
- North-facing rooms get cooler, flatter light. Colours can look grey. Warm tones help.
- South-facing rooms get warm, bright light. Almost anything works, but strong colours can feel intense.
- East-facing rooms are bright in the morning and dull later.
- West-facing rooms are the opposite. They glow in the evening.
Check the room at different times of day. Check it in the evening with the lights on. Artificial light shifts colour again, so plan your lighting with it. Our guide to layering lighting in a luxury home explains how.
Use the 60-30-10 rule
It is simple and it works.
- 60 per cent is the main colour. Walls, usually, and often large rugs or curtains.
- 30 per cent is the secondary colour. Upholstery, curtains, a feature wall.
- 10 per cent is the accent. Cushions, art, a lamp, a vase.
You do not need to measure. It is a guide to balance. Too many equal colours make a room restless.
Pick a mood first
Ask what the room is for.
- Bedrooms suit calm, soft and low-contrast colours. See how to design a luxury bedroom that helps you sleep.
- Living rooms can handle depth and warmth.
- Kitchens need colours that work with surfaces and daylight.
- Offices need focus. Avoid anything that tires the eye.
- Hallways are a chance for drama. You pass through quickly.
Make rooms flow
A home does not need one colour everywhere. It does need a thread.
Repeat a tone, a metal finish or a material from room to room. A shared trim colour works. So does a consistent flooring. Then each room can have its own character without the house feeling like a patchwork.
Test properly
This step saves the most money.
- Buy sample pots.
- Paint large boards or patches, at least A2 size.
- Move them around the room.
- Look at them morning, afternoon and evening.
- Live with them for a few days.
Never decide from a small paper chip under shop lighting.
Mind the trends, but do not chase them
Colour trends move. Earthy tones, tonal palettes and muted neutrals are all in the conversation for 2026. Our look at interior design trends for 2026 covers the wider picture.
Trends are a starting point. Your home should feel right in ten years, not only this one.
When to ask for help
Colour is rarely a solo decision in a larger project. It touches flooring, joinery, fabrics and lighting. A designer can hold all of that together. If you are planning interior design in Chelmsford, start a conversation through our contact page.