Embrace woven colour in a multicoloured jacquard cushion
Colour behaves differently when it is woven in. On a multicoloured jacquard cushion cover each shade arrives as its own thread, so the hues meet and separate across the cloth instead of blending into a flat printed field. Move around the room and the surface shifts slightly, because the raised parts of the weave catch light whilst the recessed parts hold shadow. That is the practical reason a jacquard reads as richer than a print at the same distance, and why a single cover can carry a whole colour story without shouting for attention.
It comes in a rectangular 30 x 50 cm format rather than a square, which changes how you use it. A lumbar-sized jacquard cushion sits forward of the square covers behind it, giving an arrangement a front row and genuine depth. It also happens to be the size that actually supports the small of your back on a deep sofa, so it earns its place by being used rather than only looked at. Treat it as the one piece allowed to be colourful, and keep everything around it plain.