How burgundy, sage, slate and taupe behave against warm ivory walls and natural timber.
Warm neutrals need warm colour
Against warm ivory and linen, cool brights look out of place. Burgundy, sage and taupe carry the same warmth as the room and sit into it rather than on top of it.
Slate is a colour, not a default
A single slate cushion anchors an arrangement and stops soft palettes drifting. Use one, not three.
Grey works when it is warm
A neutral mid grey reads almost as a texture in daylight, which is why it pairs so easily with natural linen.