Idioms that describe fewer colors.

Black and white, the old man in the world of mortals grows old together, wrapped in green grass, and there are two small conjectures. Yellow robe and Lantian, jade color purple. The east is frustrated and blue, and the sky is dark for no reason. Hearts, willows, green willows, red hills, green waters and green greens are not connected, and they are disheartened as white mountains, black waters, spring snow. Fire, youth, nonsense, and then came to Cabbage, Yao Huang, and died. Gray orange, yellow, orange, green, white and white, white and white, gray, dust, color, color, color, color, color, color, color, color, color, color, color, color, color, color, color, color, color, color.