I’ve spent quite a lot of time in India (mainly Hyderabad and Kolkata), and can report that India is much more colourful than Australia. Very garishly so, to my eyes. In clothing, building paint, night-time building lighting (… I found myself sometimes wishing coloured LEDs hadn’t been invented), just about everything imaginable. Weddings can be almost painful in the saturation of colour. But Indian cities are also extremely dusty, so that you only see the full extent of some of the colours in monsoon time when the rain washes it all away—especially the vibrant greens of foliage, which in other seasons often appear completely grey or slightly brown.
(Aside: I live in Victoria, down in the south east of Australia, and foliage colours are generally fairly muted. I’ve been in Darwin once, up in the northern tropical parts of Australia, and found it really weird to see eucalypts and such that clearly felt Australian to my eyes, but in the vibrant tropical greens that I associated (from experience) with Sri Lanka and parts of India.)