It must be the onset of September (and with it the dreamy promise of autumn tones), but this month I'm focussing on intense slate blue and acid yellow. In anticipation of my newly revamped sofa (almost complete, not quite) I've treated myself to one of Kirsten Hecktermann's glorious double-sided velvet cushions. The subtlety of colour in her dyed velvets is fabulous. Next up, I might just have to invest in the Smokey Blue ...