nouvel, tschumi, mvrdv, buromoscow, unstudio, piano, atrium, viñoly, jarmund, west 8, balmori, meier, jakob + macfarlane, muñoz miranda, tham & videgård, adjaye, chipperfield, mecanoo, dumbar, neutelings riedijk, mansilla+tuñón, embt, rogers, sauerbruch hutton, alsop

Colour schemes are almost always subjective (and so non-essential). They are not governed by established standards or prescriptions; nor are they part of the functional programme of a building. However, it is precisely colour that often makes a design unique and finished, and it is thanks to colour that even a building with an ordinary shape may be turned into a work of art.