the rose and crown pub in nottingham offers a plethora of condiments to choose from when eating in their establishment:
ironically, HP sauce, which is commonly called "brown sauce," has a blue packet.
i wondered whether the contents of the packets offered as wide a variety of colors as their containers. the answer is simply, no.
we considered doing a blind taste test in our office to see whether people could identify each condiment by taste alone. in the end, we didnt go thru with this experiment. the results didnt seem to be worth the flavours.