That's fine and would be the obvious answer if liver and tan was there but......it's not. The Kennel Club have apparently gone ahead and amended the colour list without the approval of the Bree Council. The colour list as it stands is now
Black, Black and Tan, Black and White, Black and White Ticked, Black White & Tan, Blue Roan, Blue Roan and Tan, Brown, Brown and White, Chocolate, Chocolate and White, Chocolate Roan, Chocolate Roan and Tan, Gold, Gold and White, Golden, Lemon, Lemon and White, Lemon Roan, Liver, Liver and White, Liver Roan, Orange and White, Orange Roan, Red, Sable, Tricolour