They are...
shoes.
What colour is the hat?
The hat is yellow.
They are...
trousers.
It's a...
dress.
What colour are the shoes?
The shoes are pink/purple.
It's a...
T-Shirt.
They are...
socks.
It's a...
hat.
What colour is the dress?
The dress is pink.
What colour are the socks?
The socks are orange and blue.
What colour are the trousers?
The trousers are blue.