Lookup in matrix with only horizontal values

Hi,

i hope somebody can help me out. I've created a small matrix that shows different types of chairs and the colors they are available in.

i would like to execute a lookup in the matrix so i immideatly now the available colors without having to go through the matrix myself. i've tried 2-dimensional lookup, but nothing seems to work...

attached a very simplified version of the matrix.

any help is welcome!