The name is a dead giveway, and this Rest roomy sofa in a sky blue jumbo cord adds texture and sophistication to any space.

In the kitchen, a soft blue with grey undertones offers a cool, calming base that, combined with creamy tiles, lightens the space without feeling sugary. Pair with wood tones and pops of verdant green ...

Blue crops up in all sorts of idioms and registers. But, as a new National Gallery of Victoria exhibition demonstrates, there’s more to the colour, and its long history, than meets the eye.