café au lait vs khaki

café au lait

noun
  • A light coffee colour. 

  • A mixture of coffee and hot milk. 

  • Coffee and hot milk served in separate jugs as a breakfast drink. 

khaki

noun
  • A dull, yellowish-brown colour, the colour of dust. 

  • khaki (Pantone) 

  • A British person (from the colour of the uniform of British troops, originally in the Second Boer War; compare rooinek). (In this sense the plural generally is khakies.) 

  • khaki green 

  • A soldier wearing a khaki uniform. 

  • Khaki clothing or uniform. 

  • Khaki green, a dull green colour. 

  • A strong cloth of wool or cotton, often used for military or other uniforms. 

adj
  • Dust-coloured; of the colour of dust. 

How often have the words café au lait and khaki occurred in a corpus of books? (source: Google Ngram Viewer )