An accent color provides contrast within a wider room scheme. The reference uses the 60-30-10 approach as a proportional starting point, with the accent occupying a smaller share than the main and supporting colors. Accessories and painted details offer different ways to introduce it.

Choose a shade that feels appropriate to the room and personal taste. Soft blue, pink, yellow, or aubergine each creates a different relationship. The proportion remains adjustable rather than a measurement that every interior must reproduce exactly.