"The color of the peach is orange."
Translation:Culoarea piersicii este portocalie.
Not necessarily. If you regard "portocaliu" as an adjective to the noun "culoare" then you should make the "acord" (Culoare portocalie). But you could also consider "portocaliu" as a noun ( the name of the colour), and in this case it is not needed to make the "acord" ( Culoarea portocaliu)