Snow is white.
The sun is yellow.
The orange is orange.
The cherry is red.
The sky is blue.
The grass is green.
The earth is brown.
The cloud is grey.
The tyres / tires (am.) are black.
What colour is the snow? White.
What colour is the sun? Yellow.
What colour  is the orange? Orange.
What colour is the cherry? Red.
What colour is the sky? Blue.
What colour is the grass? Green.
What colour is the earth? Brown.
What colour is the cloud? Grey.
What colour are the tyres / tires (am.)? Black.