Greys with pink/purple/red undertones are called Warm Greys or Taupes. Greiges are generally greys with beige or brown undertones and are considered warm too. Where can I use warm greys? Warm grey or taupes can work in all rooms and hallways and compliments most darker wood tones such as walnut and mahogany. Metallic hardware such as brass, pewter and bronze work very well against a taupe back drop.