The 60-30-10 rule is a classic decorating formula used to balance colour in a room.
How the 60-30-10 decorating rule works
Put simply, 60 per cent of the room will comprise of the one colour. Take the living room, for example. The main or dominant colour will be in your walls or any large pieces of furniture.
Your secondary or contrasting colour will make up 30 per cent of the room. This could be curtains, chairs, other furniture, or rugs.
Finally, the last 10 per cent is what’s known as your accent colour. This colour will filter through the room in the form of artwork, throw cushions, lamp shades etc.
Of course, this ratio isn't set in stone. if you are feeling adventurous, experiment and see what you come up with.