"Are the colors the same?"
Translation:Zijn de kleuren hetzelfde?
'Hetzelfde' is a noun, just as the English word 'the same'. If you would use 'dezelfde' then it is an adjective and the word 'kleuren' is implied. In the English sentence 'are these colours the same colours', the word 'same' is also an adjective. In English there is no difference between the noun and the adjective. They are both ... the same (pun intended, really). In Dutch they differ. Both 'hetzelfde' en 'dezelfde (kleuren)' can be used here, although I think most people would prefer 'hetzelfde'.